Crispy Sourdough Discard Focaccia with Rosemary – Easy & Best Recipe

My neighbor, a retired baker named Frank, watched me one afternoon as I stood in my driveway, staring into a jar of sourdough discard like it was a problem to be solved. He didn’t say anything at first. Then he just shook his head, walked into his garage, and came back with a small, oil-stained notebook page torn from a spiral.

“You’re overthinking it,” he said, handing it over. “That discard wants to be bread. Let it.”

I had been so focused on finding the perfect pancake or cracker recipe that I completely missed the obvious—discard makes incredible focaccia. I mean, of course it does. The fermented tang, the bubbly activity, the way it practically begs for olive oil and salt? It was right there in front of me. Frank’s recipe was handwritten, splattered with what I hoped was olive oil, and included the note “don’t rush the dimpling” in all caps. I took it home, made a mess of my kitchen, and honestly? The first attempt was a little flat. But the second one? That was the moment everything clicked.

Maybe you’ve been there—staring at a jar of discard, wondering if you should just toss it or find yet another way to use it up. Let me tell you, this crispy sourdough discard focaccia with rosemary is the answer you didn’t know you were looking for. It’s the recipe that made me stop seeing discard as waste and start seeing it as a gift. The crust shatters when you bite into it, the inside is chewy and soft, and the rosemary? It perfumes the whole house. I keep making it because it turns a Tuesday afternoon into something that feels like a celebration.

Why You’ll Love This Recipe

This isn’t just another focaccia recipe floating around the internet. After testing this method at least a dozen times (and failing spectacularly a few of those times), I can tell you exactly why this one works—and why you’ll keep coming back to it.

• Uses Up Your Discard: No more guilt about tossing that sourdough starter discard. This recipe transforms it into something genuinely crave-worthy, not just a “well, at least it’s not wasted” compromise.
• Incredibly Crispy Crust: The secret is in the hydration and the generous olive oil bath. You get that shatteringly crisp bottom and golden top that makes store-bought focaccia feel like a sad imitation.
• Simple Ingredients: Flour, water, olive oil, salt, rosemary, and your discard. That’s it. No fancy equipment, no obscure pantry items you’ll never use again.
• Forgiving Timeline: This dough is patient. Need to push it to tomorrow? It’ll wait. Got an extra hour? Let it rise longer. It works with your schedule, not against it.
• Foolproof for Beginners: I have made every mistake in the book with this dough—overproofed it, underproofed it, forgot the salt once—and it still turned out delicious. It’s hard to ruin.
• Perfect for Any Occasion: Serve it alongside soup for a cozy dinner, slice it for sandwiches, tear it apart for a party appetizer, or just eat it warm from the pan with nothing but butter. No judgment here.

What makes this recipe different is the technique. Most focaccia recipes rely on commercial yeast for that quick rise, but using sourdough discard adds a layer of complexity you just can’t get any other way. That subtle tang, that slightly chewy crumb, that aroma that fills your kitchen—it’s the kind of bread that makes people close their eyes after the first bite. It’s comfort food reimagined: slower, more intentional, but with the same soul-soothing satisfaction.

What Ingredients You Will Need

This recipe uses simple, humble ingredients to create something that tastes far greater than the sum of its parts. Most of these are probably already in your pantry, which is exactly how I like my recipes.

For the Dough

• 300 grams all-purpose flour (about 2 ½ cups) – I prefer King Arthur for consistent results, but any brand works. Bread flour will give you a chewier crumb if that’s your thing.
• 200 grams sourdough discard (about ¾ cup) – Straight from the fridge is fine. It doesn’t need to be active or bubbly—that’s the beauty of discard recipes.
• 200 grams warm water (about ¾ cup plus 2 tablespoons) – Around 85°F/30°C. Not hot, just comfortably warm to the touch.
• 10 grams fine sea salt (about 1 ½ teaspoons) – Don’t skip this. Focaccia needs salt to bring out its flavor.
• 2 tablespoons extra-virgin olive oil – Plus more for the pan. Use a good one here—you’ll taste it.

For the Topping

• 3 tablespoons extra-virgin olive oil – This goes into the pan before the dough. Be generous.
• 2 tablespoons fresh rosemary, finely chopped – Dried rosemary works in a pinch, but fresh gives you that aromatic punch that makes this focaccia special.
• Flaky sea salt – Maldon is my go-to. The big crystals add texture and bursts of saltiness.
• Optional: fresh thyme or black pepper – I sometimes add a sprinkle of thyme if I’m feeling fancy.

Ingredient Tips and Substitutions

If you’re gluten-sensitive, you can substitute a 1:1 gluten-free all-purpose flour blend, but note that the texture will be denser and less airy. For a whole wheat version, swap half the all-purpose flour for whole wheat flour—you’ll need to add an extra tablespoon of water since whole wheat absorbs more liquid. I’ve tried this with olive oil infused with garlic (just warm a few cloves in the oil and let it cool), and it’s absolutely incredible if you’re a garlic lover.

Equipment Needed

You don’t need a fancy kitchen to make this bread. Here’s what you’ll actually use:

• 9×13-inch baking pan – Metal or glass both work. I prefer metal because it conducts heat better and gives you a crispier bottom crust.
• Large mixing bowl – Any bowl large enough to hold the dough as it rises.
• Bench scraper or spatula – For folding the dough. A flexible silicone spatula is my favorite.
• Kitchen scale – I know, I know, but trust me on this one. Weighing your ingredients is the difference between “good” focaccia and “I can’t stop eating this” focaccia.
• Plastic wrap or a damp kitchen towel – To cover the dough while it rises.
• Cooling rack – Essential for keeping that crispy crust intact.

If you don’t have a 9×13 pan, a 10-inch cast iron skillet works beautifully. The sides are higher, so you get a slightly thicker focaccia with extra crispy edges. Just make sure to grease it well.

Preparation Method

Let’s get to the good part. This recipe takes time, but most of it is hands-off. Here’s exactly how to make the best crispy sourdough discard focaccia with rosemary of your life.

1. Mix the dough: In a large bowl, combine the flour, warm water, sourdough discard, and salt. Stir with a spatula or your hand until a shaggy, sticky dough forms. It will look rough and uneven—that’s perfect. Cover the bowl with plastic wrap and let it rest for 30 minutes. This autolyse step lets the flour absorb the water and makes the dough easier to work with.
2. First fold: After the rest, wet your hands with a little water (this prevents sticking). Grab one side of the dough, stretch it up, and fold it over the center. Rotate the bowl 90 degrees and repeat. Do this 4 times total, working your way around the bowl. The dough will tighten up and become smoother. Cover and rest 30 minutes.
3. Second and third folds: Repeat the folding process two more times, waiting 30 minutes between each set. By the third fold, the dough should feel significantly stronger and more elastic. You’ll notice small bubbles forming—that’s good.
4. Bulk fermentation: After the final fold, cover the bowl and let the dough rise at room temperature for 4-6 hours, or until it has doubled in size and looks bubbly and alive. If your kitchen is cold, it might take longer. If it’s warm, check earlier. The dough should feel airy and jiggle slightly when you shake the bowl.
5. Prepare the pan: Pour 3 tablespoons of olive oil into your 9×13 pan. Spread it around so the bottom and sides are well coated. This is non-negotiable—the oil bath is what gives you that crispy, golden crust.
6. Transfer the dough: Gently scrape the dough into the oiled pan. Don’t deflate it too much—you want to keep as many bubbles as possible. Let it sit for 10 minutes to relax.
7. Stretch and dimple: Using oiled fingertips, gently stretch the dough to fill the corners of the pan. If it resists, let it rest 5 minutes and try again. Once it’s evenly spread, press your fingers deep into the dough to create those iconic dimples. Don’t be shy—go all the way to the bottom of the pan. This isn’t just for looks; the dimples hold pools of olive oil and create those crispy, caramelized spots.
8. Final proof: Cover the pan with plastic wrap and let the dough rise for 2-3 hours, until it’s puffy and nearly doubled. It should look pillowy and soft.
9. Preheat and top: About 30 minutes before baking, preheat your oven to 425°F (220°C). Sprinkle the chopped rosemary and flaky sea salt evenly over the top of the dough. Drizzle with a little more olive oil if you’re feeling generous.
10. Bake: Place the pan on the middle rack and bake for 25-30 minutes, until the top is deep golden brown and the bottom sounds hollow when you tap it. Rotate the pan halfway through for even browning. The kitchen will smell like heaven at this point.
11. Cool: Let the focaccia cool in the pan for 5 minutes, then transfer it to a cooling rack. This step is crucial—if you leave it in the pan, the steam will soften that beautiful crispy crust. Let it cool for at least 15 minutes before slicing.

Cooking Tips & Techniques

I learned most of these the hard way, so you don’t have to. My first focaccia was a dense, oily mess because I rushed the proofing. My second was too dry because I used too much flour. Here’s what I wish someone had told me:

Don’t be afraid of sticky dough. Sourdough discard focaccia is supposed to be wet and sticky. That high hydration is what creates the open crumb and crispy crust. Resist the urge to add more flour—instead, wet your hands when handling the dough. It’s a game-changer.

Temperature matters more than you think. If your kitchen is cold (below 70°F), your dough will take forever to rise. I’ve let mine proof overnight in a cool kitchen and it turned out beautifully. If you’re in a hurry, place the bowl in your oven with just the light on—it creates a warm, draft-free environment.

The dimpling technique is everything. I used to just poke the dough lightly, thinking that was enough. No. You need to press firmly and all the way down to the pan. Those deep dimples fill with olive oil and create the most incredible crispy, golden spots. Plus, they help the rosemary and salt stick to the bread.

Let it cool. I know it’s torture, but cutting into hot focaccia will crush all those beautiful air pockets. Give it at least 15-20 minutes. The crust will stay crispy, and the inside will be perfectly chewy.

Use a metal pan for the crispiest bottom. Glass and ceramic pans retain more moisture, which can lead to a softer bottom crust. A metal pan conducts heat better and gives you that satisfying crunch.

Variations & Adaptations

Once you’ve mastered the basic crispy sourdough discard focaccia with rosemary, the possibilities are endless. Here are some of my favorite variations:

• Garlic and Herb: Infuse the olive oil with 4 crushed garlic cloves (warm them gently in the oil, then let cool) before adding to the pan. Sprinkle with rosemary, thyme, and oregano. The garlic flavor is subtle but unmistakable.
• Everything Bagel: Skip the rosemary and top with everything bagel seasoning (sesame seeds, poppy seeds, dried garlic, dried onion, and salt). This version is incredible for sandwiches.
• Sun-Dried Tomato and Olive: Press halved cherry tomatoes and sliced olives into the dough before the final proof. The tomatoes caramelize and burst in the oven, creating little pockets of sweetness.
• Cheese Lover’s: Sprinkle grated Parmesan or crumbled feta over the top before baking. Add a little fresh thyme for balance. The cheese gets crispy and golden—absolutely addictive.
• Sweet Version: Swap the rosemary for cinnamon sugar and a drizzle of honey. Use a little less salt in the dough. This is perfect for breakfast or dessert.

I once made a batch with caramelized onions and Gruyère for a party, and people literally stood around the pan eating it straight out of the oven. No plates, no napkins, just pure focaccia devotion.

Serving & Storage Suggestions

This focaccia is best served warm, within an hour of baking. The contrast between the crispy exterior and the soft, airy interior is at its peak when it’s fresh from the oven. But let’s be real—it’s still incredible at room temperature.

Serving ideas: Tear it into pieces and serve alongside a bowl of tomato soup or minestrone. Slice it horizontally and use it for the best sandwich bread you’ve ever had (try it with roasted vegetables and pesto). Cut it into cubes and toast it for croutons. Or honestly, just eat it with a pat of butter and a sprinkle of salt.

Storage: Store leftover focaccia in an airtight container at room temperature for up to 2 days. Do not refrigerate—it will dry out and go stale faster. If you need to keep it longer, wrap it tightly in plastic wrap and freeze for up to 3 months.

Reheating: The microwave will make it soggy. Instead, reheat slices in a 350°F oven for 5-7 minutes, or in a toaster oven. For extra crispiness, place it directly on the oven rack. You can also reheat it in a skillet with a little olive oil—the bottom gets incredibly crispy.

Flavor development: Honestly, this focaccia is even better the next day. The flavors meld together, and the rosemary becomes more aromatic. If you can resist eating it all in one sitting, you’re stronger than me.

Nutritional Information & Benefits

While I wouldn’t call focaccia a health food, it does have some redeeming qualities—especially when made with sourdough discard. The fermentation process breaks down some of the gluten and phytic acid, making the nutrients more bioavailable and easier to digest. Many people with mild gluten sensitivities find sourdough bread easier on their stomach.

Here’s an approximate breakdown per serving (1/8 of the recipe):

• Calories: 220
• Carbohydrates: 32g
• Protein: 5g
• Fat: 8g
• Fiber: 1g
• Sodium: 380mg

Olive oil is rich in heart-healthy monounsaturated fats and antioxidants. Rosemary contains compounds that have anti-inflammatory properties. And sourdough fermentation produces beneficial bacteria that support gut health. So while this isn’t a salad, it’s definitely a bread you can feel good about eating.

If you’re watching your sodium, reduce the flaky salt on top. For a lower-fat version, use less olive oil in the pan—but honestly, the oil is what makes the crust so good. Everything in moderation, right?

Conclusion

This crispy sourdough discard focaccia with rosemary has become a staple in my kitchen, and I have a feeling it will become one in yours too. It’s the kind of recipe that makes you feel like a real baker, even on a Tuesday afternoon when you’re just trying to use up some discard. The process is meditative, the result is stunning, and the taste is absolutely unforgettable.

I love that this recipe takes something you might have thrown away and turns it into something you’ll want to share. It’s proof that the best things in life don’t have to be complicated—they just need a little patience, a little olive oil, and a lot of love. Frank was right. That discard wanted to be bread. I just had to let it.

Now it’s your turn. Try this recipe, make it your own, and let me know how it turns out. Did you add something unexpected? Did you serve it with soup or eat it straight from the pan? I’d love to hear about your crispy sourdough discard focaccia adventures. Drop a comment below, share a photo, or tag me in your creation. Happy baking!

Frequently Asked Questions

Can I use active sourdough starter instead of discard?

Yes, absolutely. If you use active starter, reduce the water by about 25 grams to account for the extra hydration in the starter. The focaccia will be even more bubbly and flavorful.

Why is my focaccia dense and not airy?

This usually happens when the dough hasn’t proofed long enough. Sourdough discard takes longer to rise than commercial yeast, so be patient. Also, make sure your water is warm enough (around 85°F) to encourage fermentation.

Can I make this gluten-free?

You can use a 1:1 gluten-free all-purpose flour blend, but the texture will be denser and less chewy. Add an extra tablespoon of water since gluten-free flours absorb more liquid. The flavor will still be delicious!

How do I get an even crispier crust?

Bake the focaccia on the bottom rack of your oven for the last 5 minutes. You can also place a baking sheet on the rack below to catch any drips and create extra heat circulation. Don’t skip the generous olive oil bath in the pan.

Can I refrigerate the dough overnight?

Yes! After the bulk fermentation (step 4), cover the bowl tightly and refrigerate for up to 24 hours. The next day, let it come to room temperature for about an hour before transferring to the oiled pan. This develops even more flavor.

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