These sourdough discard crackers turn unfed starter into thin, crisp savory crackers flavored with sharp cheddar, rosemary, thyme, garlic, and flaky sea salt. The key is an even, paper-thin sheet of dough and baking until the centers look dry and firm rather than soft or glossy.
Use 100% hydration sourdough discard for the proportions in the recipe card below. The crackers bake at 350°F and develop the best snap when the dough is rolled to about 1/16 inch thick.
Why These Sourdough Discard Crackers Turn Out Crisp
Crispness comes primarily from thickness, moisture loss, and even baking. A thin sheet gives water a short path to escape, while melted butter and finely grated cheddar add richness without turning the dough into a bread-like crumb. Docking the surface also gives steam a way out instead of letting large bubbles lift sections of the dough.
Watch the surface as closely as the timer. The centers should lose their wet-looking sheen, the edges should become golden, and the crackers should feel firm rather than flexible. If some areas color much faster than others, the dough is usually thicker in the paler spots.
Key Ingredients and Smart Choices
Sourdough discard: This version is built around unfed discard at 100% hydration. Very thick or unusually liquid discard can change how much flour the dough seems to need, so avoid adjusting the formula until the listed ingredients have been mixed as written.
Extra-sharp cheddar: Finely grating the cheese helps distribute it through the dough instead of leaving large pockets that can brown too quickly. A firm cheddar also keeps the flavor concentrated.
Fresh rosemary and thyme: Chop the rosemary finely so the herbs distribute evenly through very thin dough. Large pieces can tear the sheet while rolling.
Flour: All-purpose flour keeps the texture light and easy to roll. Whole-grain flour can make crackers taste nuttier, but it may also produce a drier, more fragile texture, so it is better treated as a variation rather than an exact one-for-one promise.
How to Get Thin Crackers Instead of Chewy Ones
Keep the thickness even
An even 1/16-inch sheet matters more than perfectly shaped squares. Thick islands stay chewy while thinner edges brown first. Roll from the center outward and check the middle before baking.
Use color and texture as the doneness test
The crackers are ready when the edges are golden to deeper golden brown and the centers are matte, dry-looking, and firm. A pale center that still bends easily usually needs more drying time.
Let steam escape
Fork holes help limit large steam bubbles and keep the surface flatter. A few small blisters are normal; large soft pockets usually point to uneven rolling or incomplete docking.
Troubleshooting Sourdough Crackers
Chewy after cooling: The dough was likely too thick or the centers retained moisture. Return the crackers to a low oven for a few minutes and let them cool again before judging the final snap.
Dark edges with pale centers: The sheet is probably thinner at the perimeter. Roll the center more evenly next time and remove fully crisp edge pieces first if necessary.
Dough tears while rolling: Large herb pieces or coarse cheese shreds can catch between the parchment. Finely minced herbs and finely grated cheddar create a smoother sheet.
Cheddar Herb Sourdough Discard Crackers
Equipment
- Medium mixing bowl
- Rolling Pin
- Parchment paper
- Heavy baking sheet
- Pizza cutter or sharp knife
- Fork
Ingredients
For the Crackers
- 1 cup sourdough discard 240 g; 100% hydration, unfed
- 1 cup all-purpose flour 120 g
- 2 tbsp unsalted butter 28 g; melted
- 1/2 cup extra-sharp cheddar cheese 56 g; finely grated
- 1 tbsp fresh rosemary finely minced
- 1 tsp fresh thyme leaves
- 1/2 tsp garlic powder
- 1/2 tsp fine sea salt
- 1 tsp flaky sea salt for sprinkling
Instructions
- Preheat the oven to 350°F (175°C). Prepare parchment paper and a heavy baking sheet.
- Combine the sourdough discard, melted butter, fine sea salt, garlic powder, rosemary, thyme, and grated cheddar. Add the all-purpose flour and stir until a smooth, cohesive dough forms and pulls away cleanly from the bowl.
- Roll the dough evenly between sheets of parchment paper to about 1/16 inch (1.5 mm) thick.
- Remove the top parchment. Score the dough into approximately 1.5-inch squares with a pizza wheel or sharp knife. Prick the crackers with a fork and sprinkle with flaky sea salt.
- Transfer the parchment and dough to the baking sheet. Bake at 350°F (175°C) for 18 to 22 minutes, until the edges are golden brown and the centers look dry, matte, and firm. Cool for about 15 minutes before serving.
Notes
Nutrition
Serving Ideas
These cheddar-herb crackers work well on a snack board, beside soup, or as a crisp base for savory toppings. For another way to use sourdough at home, try our sourdough French toast recipe. For lunch, serve the crackers with a cozy bowl of mushroom soup, or spoon a little avocado egg tuna salad on top just before serving.
Storage and Re-Crisping
Let the crackers cool completely before sealing them in an airtight container at room temperature. Trapped warmth creates condensation, which softens a thin cracker quickly. If they lose some snap in humid conditions, spread them on a baking sheet and warm them briefly in a low oven, then cool completely again before storing.
Can I use sourdough discard straight from the fridge?
Yes. Cold sourdough discard can be used for these crackers as long as it is a normally maintained discard with no signs of spoilage. Stir it before measuring so the consistency is even.
Why are my sourdough discard crackers chewy instead of crispy?
The most common causes are dough that was rolled too thick, uneven thickness, or centers that were still holding moisture. Bake until the centers look dry and matte, then let the crackers cool before judging the final texture.
How should I store sourdough discard crackers?
Cool the crackers completely, then keep them in an airtight container at room temperature. If they soften in humid conditions, warm them briefly in a low oven and cool them again before storing.