Sourdough Discard Crackers — Thin, Crispy & Ready in 45 Minutes

These sourdough discard crackers are shatteringly crisp, deeply savory, and made with just 4–6 ingredients you already have. They're one of the easiest and most satisfying things you can make with discard — better than any store-bought cracker, and endlessly customizable with different toppings and seasonings.

💡 Looking for more ways to use your discard? See the full Sourdough Discard Recipes collection.
⬇ Jump to Recipe Sourdough discard crackers on a slate board with hummus olives and rosemary

Thin, crispy, tangy — sourdough discard crackers in 45 minutes.

Two Methods — Which One Is Right for You?

There are two ways to make sourdough discard crackers. Both are excellent — your choice depends on how much time you have and what texture you prefer.

Method 1 — Spreadable Batter (No Flour)

Just discard, butter, and salt. Spread directly onto parchment and bake. Ultra-thin, cracker-chip texture. Fastest option — no rolling required.

Method 2 — Rolled Dough (With Flour)

Discard + flour + butter + salt. Roll thin, cut into shapes, bake. Sturdier, more traditional cracker texture. Better for toppings and dipping.

The recipe card below is for Method 2 (rolled dough) — it's the most versatile and what most people searching for sourdough discard crackers are looking for. Jump to the no-flour spreadable method below if you want the fastest version.

Sourdough Discard Crackers
Thin, crispy, buttery sourdough discard crackers. 6 ingredients, one bowl, endlessly customizable.
Prep Time15 min
Chill Time30 min
Cook Time20–25 min
Total Time~1 hr
Servings~40 crackers
Calories~18 kcal each
Ingredients
  • 200 g (¾ cup + 2 tbsp) sourdough discard (100% hydration)
  • 60 g (½ cup) all-purpose flour — plus more for rolling
  • 60 g (¼ cup) unsalted butter, cold and cubed
  • ½ tsp fine sea salt
  • ½ tsp flaky sea salt, for topping
  • Optional: 1 tsp dried rosemary, everything bagel seasoning, sesame seeds, garlic powder, or grated Parmesan
Instructions
  1. Make the dough. In a large bowl, combine sourdough discard, flour, cold cubed butter, and salt. Mix with a fork or your hands until a cohesive dough forms. Add any optional seasonings and mix through.
  2. Divide and chill. Divide dough into two equal portions. Flatten each into a disc, wrap in plastic wrap, and refrigerate for at least 30 minutes (up to 2 days).
  3. Preheat oven. Heat oven to 350°F (175°C). Line two baking sheets with parchment paper.
  4. Roll very thin. Working with one disc at a time, roll directly on a lightly floured piece of parchment to about 1/16 inch (1.5mm) thick. Thin = crispy.
  5. Cut into shapes. Use a pizza cutter or sharp knife to cut into rectangles or squares. Transfer parchment directly onto baking sheet. Prick each cracker 2–3 times with a fork to prevent puffing.
  6. Top and bake. Brush lightly with water or olive oil. Sprinkle with flaky salt and any toppings. Bake 20–25 minutes until edges are deep golden and crackers feel firm and dry.
  7. Cool completely. Transfer to a wire rack. Wait 10–15 minutes before eating — they crisp up as they cool. Store in an airtight container up to 1 week.
📝 Notes:
  • Thin is everything. The #1 reason crackers come out soft is rolling too thick. Aim for 1/16 inch — almost translucent.
  • Watch the edges. Thin edges brown faster than the center. Remove any done pieces early and return the rest to the oven.
  • Freeze the dough. Wrapped discs freeze well for up to 3 months. Thaw overnight in fridge, then roll and bake.
  • Already have a rosemary version? See our dedicated Rosemary Sea Salt Sourdough Discard Crackers post.

Step-by-Step: How to Make Sourdough Discard Crackers

Step 1 — Mix the Dough

Add sourdough discard, flour, cold cubed butter, and salt to a bowl. The cold butter is important — it creates flaky layers as it melts in the oven. Mix until combined. The dough will be slightly tacky.

Sourdough discard cracker dough being mixed in a white bowl with butter and flour

Cold butter is key — it creates flaky layers in the finished cracker.

Step 2 — Chill the Dough

Divide into two discs, wrap tightly, and refrigerate for 30 minutes minimum. Cold dough rolls dramatically thinner and more evenly than warm dough. You can chill up to 2 days ahead.

Step 3 — Roll Extremely Thin

This is the most important step. Roll directly on parchment paper so you can transfer it straight to the baking sheet. Aim for 1/16 inch — when you hold the parchment up to light, you should almost see through the dough.

Rolling sourdough discard cracker dough very thin on parchment paper with a rolling pin

Roll until nearly translucent — this is thinner than you think. Thin = crispy.

Step 4 — Cut, Top & Bake

Slide the parchment onto a baking sheet. Cut into shapes with a pizza cutter. Prick each cracker 2–3 times with a fork. Brush with water or olive oil, add toppings, and bake at 350°F for 20–25 minutes until deep golden.

Raw sourdough discard crackers on a baking sheet ready to bake showing different topping variations

Prick with a fork to prevent puffing. Season generously — toppings fade during baking.

Step 5 — Cool Before Eating

The crackers will feel slightly soft when they first come out — that's normal. They crisp up dramatically as they cool. Give them at least 10–15 minutes before tasting. If still soft after cooling, return to the oven for 5 more minutes.

Golden sourdough discard crackers cooling on a wire rack showing crispy edges

They crisp up as they cool — wait 10–15 minutes before eating.

Method 1 — No-Flour Spreadable Sourdough Discard Crackers

This is the fastest, most minimal version. Just three ingredients. No rolling, no chilling, no cutting. The result is a thinner, crispier cracker-chip texture.

Ingredients

  • 240 g (1 cup) sourdough discard
  • 30 g (2 tbsp) unsalted butter, melted
  • ½ tsp fine sea salt
  • Optional: dried herbs, garlic powder, everything seasoning

Method

  1. Preheat oven to 325°F (160°C). Line a large baking sheet with parchment.
  2. Mix discard, melted butter, salt, and any seasonings until smooth.
  3. Pour onto parchment and spread as thin and even as possible with an offset spatula.
  4. Bake 10 minutes, remove and score into squares with a pizza cutter.
  5. Return to oven and bake another 35–45 minutes until golden, dry, and crisp. Watch carefully in the last 10 minutes.
  6. Cool completely on the pan before breaking apart.

Sourdough Discard Cracker Variations

Rosemary Sea Salt

Add 1½ tsp finely chopped fresh rosemary to the dough. Top with flaky Maldon salt before baking. See the full version: Rosemary Sea Salt Sourdough Discard Crackers.

Everything Bagel Sourdough Crackers

Brush crackers with olive oil before baking and press a generous layer of everything bagel seasoning on top. Addictive — these disappear fastest.

Sesame Sourdough Crackers

Mix 2 tbsp toasted sesame seeds into the dough. Top with more sesame and flaky salt before baking. Pairs perfectly with hummus and soft cheeses.

Parmesan Garlic Crackers

Add 30 g (¼ cup) finely grated Parmesan and ½ tsp garlic powder to the dough. Intensely savory — pairs beautifully with red wine and charcuterie.

Cinnamon Sugar Crackers (Sweet Version)

Replace butter with coconut oil. After rolling, sprinkle with 2 tbsp sugar + 1 tsp cinnamon. A surprisingly delicious sweet variation.

Tips for the Crispiest Sourdough Discard Crackers

  • Roll thinner than you think. 1/16 inch is the target. Most people roll too thick and wonder why their crackers are soft.
  • Use cold butter. Cold butter in the dough creates flaky layers — don't melt it for Method 2.
  • Chill the dough. Warm dough tears when rolling. 30 minutes in the fridge makes it dramatically easier to handle.
  • Prick with a fork. Prevents puffing so the crackers bake flat and crisp evenly.
  • Season generously. Flavors mellow during baking — use more than you think you need.
  • Cool completely. Crackers that feel soft out of the oven will crisp up. Give them time before judging.

Sourdough Discard Crackers FAQ

Why are my sourdough discard crackers soft and not crispy?
Almost always one of three reasons: (1) rolled too thick — aim for 1/16 inch, (2) underbaked — the center should feel completely dry and firm before removing, or (3) not cooled long enough — they need 10–15 minutes to reach full crispness. If still soft after cooling, return to a 300°F oven for 5–10 more minutes.
Can I use sourdough discard straight from the fridge?
Yes for Method 1 (spreadable). For Method 2 (rolled dough), room temperature discard mixes more easily into the dough. Either way works — the final cracker won't taste different.
How long do sourdough discard crackers last?
Up to 1 week in an airtight container at room temperature. A mason jar with a tight lid works well. If they soften, spread on a baking sheet and bake at 300°F for 5 minutes to re-crisp.
Can I use active starter instead of discard?
Yes — active starter works in both methods without any adjustment. The crackers may have a slightly less pronounced tang but the texture will be identical.
Can I make sourdough cracker dough ahead of time?
Yes. The rolled dough (Method 2) keeps in the fridge wrapped for up to 2 days, or frozen for up to 3 months. Thaw overnight in the fridge before rolling. The spreadable batter (Method 1) is best made and baked immediately.
Do sourdough discard crackers taste sour?
They have a pleasant, subtle tang — similar to a good artisan cracker. The older your discard, the more pronounced the flavor. Very old discard (2+ weeks) makes the most flavorful savory crackers.

More Sourdough Discard Recipes

Ready to Make Sourdough Discard Crackers?

These are one of the most rewarding discard recipes — fast, flexible, and genuinely better than anything from a box. Make a double batch and freeze half the dough for next time.

Browse the full Sourdough Discard Recipes collection for more ideas.