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Sourdough crackers recipe: a bowl of sourdough crackers on a wooden table

Easy Sourdough Crackers

A simple, beginner-friendly sourdough crackers recipe using starter or discard—perfect for turning leftovers into crisp, homemade snacks.
Prep Time 5 minutes
Cook Time 25 minutes
Total Time 30 minutes
Serving Size 5

Equipment

  • mixing bowl
  • baking sheet
  • Parchment paper
  • pizza cutter OR sharp knife

Ingredients

  • 1 cup (240g) sourdough discard (unfed, straight from the fridge is fine)
  • 3-4 Tbsp olive oil or melted butter (see notes)
  • ½ tsp fine salt
  • ½ tsp onion powder
  • ½ tsp garlic powder

Instructions

  • Preheat your oven to 325°F (165°C) and line a baking sheet with parchment paper.
  • Add the sourdough discard to a medium mixing bowl. Sprinkle in the fine salt, onion powder, and garlic powder, then add in olive oil or melted butter.
  • Stir everything together until smooth. The mixture should resemble a thick pancake batter. If it’s too thick to spread, add water one teaspoon at a time until you reach a thick but spreadable consistency.
  • Pour the batter onto the center of your prepared baking sheet and spread it as thinly as possible using the back of a spoon or a spatula—almost see-through in some spots. Thin batter is key for crispy crackers.
  • Bake for about 10 minutes, until the surface looks dry and set but not fully browned.
  • Remove the tray from the oven and use a pizza cutter or a knife to score the dough into cracker shapes, such as squares or diamonds.
  • Return the tray to the oven and bake for another 10–15 minutes, until the crackers are deep golden and fully dry in the center. To check for doneness, tap a cracker with your fingernail—it should feel crisp, not soft.
  • The edges usually brown faster, so remove those crackers first. Then return the tray to the oven for a few more minutes so the center crackers can finish crisping up evenly.
  • Once fully cooled, break the crackers apart. They will continue to crisp up slightly as they cool.

Notes

  • Whole grains love a little extra fat for crispness. If using whole wheat sourdough discard, increase oil or butter to 4 tablespoons.
  • Store your crackers in airtight container for up to 1 week.