1. 1. Prepare Your Dough Mixture: In a medium-sized mixing bowl, combine the unfed sourdough discard, all-purpose flour, shredded cheddar cheese, melted butter, salt, and any optional seasonings like garlic powder or cayenne pepper. Use a sturdy spoon or your hands to mix everything together until a cohesive, shaggy dough forms. It might seem a bit sticky at first, but keep mixing until all the ingredients are well incorporated.

2. 2. Form and Chill the Dough: Once combined, gather the dough into a ball. If it’s too sticky to handle, add a tiny bit more flour, a teaspoon at a time. Flatten the dough slightly into a disk, wrap it tightly in plastic wrap, and refrigerate for at least 30 minutes. This chilling step is essential as it firms up the butter and makes the dough much easier to roll out thinly.

3. 3. Preheat Oven and Prepare Baking Sheets: While the dough chills, preheat your oven to 350 F (175 C). Line two large baking sheets with parchment paper. Parchment paper prevents sticking and ensures even baking, making cleanup a breeze.

4. 4. Roll Out the Dough Thinly: On a lightly floured surface or between two sheets of parchment paper, roll out the chilled dough as thinly as possible, aiming for about 1/16 to 1/8 inch thickness. The thinner you roll the dough, the crispier your crackers will be. Use a rolling pin and work quickly to prevent the dough from getting too warm.

5. 5. Cut the Crackers: Use a pizza cutter, a sharp knife, or even a small cookie cutter (like a square or round shape) to cut the dough into your desired cracker shapes. For traditional crackers, cut them into small squares or rectangles. You can also use a fork to prick holes in the center of each cracker, which helps prevent them from puffing up too much during baking and ensures an even crisp.

6. 6. Arrange and Bake: Carefully transfer the cut crackers to the prepared baking sheets, leaving a small space between each one to allow for air circulation. Bake for 15-20 minutes, or until the crackers are golden brown and crisp. Keep a close eye on them, as baking times can vary, and they can go from perfectly golden to burnt quickly. The edges tend to brown first, so look for an even color across the entire cracker.

7. 7. Cool Completely: Once baked, remove the crackers from the oven and transfer them to a wire rack to cool completely. They will crisp up further as they cool. Resist the urge to snack on them immediately; allowing them to cool ensures the best texture.