Preheat oven to 350℉ and line a baking sheet with parchment paper.
Melt butter and allow to cool slightly.
Into a bowl, weigh out sourdough discard using a kitchen scale.
Add melted butter, fine salt, and herbs or seasonings, and mix until thoroughly combined.
Spread dough thinly onto parchment paper. Sprinkle the top with coarse salt.
Put in the oven and bake for 20-50 minutes, or until starting to turn golden brown. If desired, after the first 10 minutes, remove the sheet from the oven and score the crackers with a knife or pizza cutter.
When done, remove from oven and allow to cool. Break crackers into appropriate sizes. Crackers can be consumed immediately or stored in an airtight container for about a week.
