Preheat oven to 325°F (163°C). Line a baking sheet with parchment paper. In a bowl, stir together sourdough discard, melted butter or oil, salt, rosemary, and thyme.
Place all ingredients in a bowl: sourdough discard, melted butter or oil, salt, rosemary, and thyme.
Stir the ingredients and make sure they are all thoroughly combined.
Place a piece of parchment paper on a baking sheet, and pour the cracker dough onto it. Then spread the dough thinly and evenly. Using an offset spatula can help spread it thin. You want it in a thin layer but NOT translucent. This will cause a crumbly cracker.
Sprinkle with a pinch of flaky salt or extra herbs if desired.
Bake for 10 minutes, then remove and score the crackers with a knife or a pizza cutter into squares. (DO NOT SKIP) Place the crackers back into the oven and bake for an additional 15-20 minutes or until they are golden brown and crisp.
Let the crackers cool completely on a cooling rack before breaking into pieces.