Sourdough Discard Crackers
Every time you feed your sourdough starter, you have a choice: discard it or use it. These crackers exist because that discard is too good to waste. They're not an afterthought—they're a reason to keep a starter going.
You need discard at room temperature and a reliable oven
Use starter that's been fed but not left for days—something with a slight rise and a tang. Your oven matters: hot crackers need consistent, actual heat. If your oven runs cool, they'll bake but won't crisp the same way.
- medium mixing bowl
- wooden spoon or small whisk
- rolling pin
- baking sheet
- parchment paper
- pastry cutter or knife
What goes in.
- 1 cupsourdough discard, room temperature
- ¾ cupall-purpose flour
- 2 tbspolive oil or melted butter
- ½ tspsalt
- ¼ tspblack pepper (optional)
Roll thin enough to see light through it
These crackers live or die on thickness. If you roll to ¼ inch, you get a chewy cracker. Roll to the thickness of a dime—actually thin—and you get the shatter. The dough will seem impossible to roll that thin at first. It relaxes. Give it a minute, then keep going.
The method.
Mix the dough
Stir together the sourdough discard, flour, olive oil, salt, and pepper in a bowl until no flour streaks remain. The dough will be slightly sticky and shaggy. That's right.
Knead lightly
Turn the dough onto a lightly floured counter and knead for 2 minutes—just enough to bring it together. You're not developing gluten; you're just organizing the mass.
Rest
Let the dough sit under a tea towel for 10 minutes. This hydrates the flour and makes rolling far easier.
Roll thin
Place the dough between two pieces of parchment paper. Roll it as thin as you can—aim for translucent. If it springs back, wait a minute and keep rolling. You want it almost paper-thin.
Cut
Slide the dough (still on parchment) onto a baking sheet. Use a pastry cutter or knife to cut into roughly 2-inch squares or triangles. Leave them touching—they won't spread.
Bake
Bake at 400°F for 12 to 16 minutes. Start checking at 12. They're done when the edges amber and the centers are just beginning to color. Some will crisp more than others, and that's fine.
Cool
Let them sit on the pan for 2 minutes—they crisp as they cool. Then transfer to a wire rack or plate. They'll crackle and harden in the next few minutes.
Other turns to take.
Herb crackers
Stir in 1 tablespoon of dried oregano, thyme, or rosemary into the dough before rolling. The heat releases the flavor.
Spiced crackers
Add ½ teaspoon of garlic powder and ¼ teaspoon of cayenne to the dough. Brush the rolled dough lightly with water and sprinkle coarse sea salt on top before cutting.
Everything bagel crackers
Brush the rolled dough with water, sprinkle with everything bagel seasoning or a mix of sesame seeds, poppy seeds, dried garlic, and salt, then cut and bake.
Parmesan crackers
Reduce flour to ½ cup and add ¼ cup grated Parmesan to the dough. Brush the rolled sheet with water and top with more Parmesan before cutting.
When it doesn't go to plan.
If your discard is very liquid, use slightly less—the dough should come together without being sticky enough to stick to your hands permanently.
Parchment paper is not optional here; it keeps the thin dough from tearing as you transfer it to the oven.
Don't worry if some pieces brown faster than others. Pull out the darkest ones early and let the rest finish.
These keep in an airtight container for a week, though they rarely last that long.
The tanginess develops as the crackers cool. Taste one warm and one after it's cooled—there's a real difference.
The ones that keep coming up.
Can I use very young or very old discard?
Young discard (just fed, not yet bubbly) will work but lack tang. Old discard (fed many hours ago, peaked, starting to recede) works fine and tastes sharper. Avoid anything that smells off or has liquid on top.
What if I don't have parchment paper?
Brush the baking sheet with oil instead. It's messier and the dough may stick in spots, but it works. Parchment just makes it cleaner.
Can I add water to make a thinner dough?
You can add a tablespoon at a time, but the dough will become harder to handle. The current ratio produces dough that's already thin enough if you roll it properly. Trust the rolling.
Why did mine turn out chewy instead of crispy?
Either they were too thick to begin with, or they didn't bake long enough. Check that your oven is actually at 400°F—use an oven thermometer if you're uncertain. Bake until the edges are brown and the centers show color.
Can I make the dough ahead and bake later?
Yes. Refrigerate the rolled dough on parchment in an airtight container for up to 2 days. Cut and bake straight from cold—add a minute or two to the bake time.