This sourdough discard recipe is for the jar that has been sitting in your refrigerator, looking more neglected every time you feed Gus. We are turning it into thin, crisp, cheesy crackers in one skillet, with no fancy pasta roller and no heroic baking skills required. The crackers take about 15 minutes to mix, 20 minutes to rest, and 12 to 16 minutes to bake. They are excellent with soup, hummus, or eaten directly over the sink while dinner is still theoretical.
I tested these on a dry Denver afternoon, when dough can go from cooperative to dusty in a blink. The final batch was uneven around the edges and deeply golden in the center. Lily called the odd shapes “cracker planets,” which is a better description than anything I could have written. It doesn't matter if it's perfect or not, just make it delicious.
What you need for this sourdough discard recipe
Use 150 grams unfed sourdough discard, preferably 100 percent hydration. That means the starter was fed with equal weights flour and water. Cold discard works, although room-temperature discard combines faster. You will also need 60 grams all-purpose flour, 35 grams unsalted butter melted and cooled for five minutes, 35 grams finely grated Parmesan, 3 grams kosher salt, 1 gram garlic powder, and 1 gram dried rosemary. Add 10 grams water only if the dough refuses to come together.
The Parmesan provides salt and crisp edges, so do not automatically add extra. A microplane gives the best texture because large shreds create damp pockets. For a milder cracker, replace Parmesan with finely grated sharp cheddar, but weigh it rather than measuring by handful. That little detail matters more than people expect.
A sheet pan, parchment paper, a rolling pin, and a fork are enough. I use a digital scale because flour settles differently every time you scoop it. You do not need a stand mixer, baking stone, or special cracker cutter. A clean wine bottle works as a rolling pin in a pinch, though Mark has asked me not to store one in the baking drawer again.
Mix and roll the dough
Stir the discard, melted butter, Parmesan, salt, garlic powder, and rosemary in a medium bowl. Add the flour and mix with a fork until shaggy. Use your hands to press the mixture into a ball. It should feel soft and slightly tacky, not wet. If dry crumbs remain after 60 seconds of squeezing, add the measured 10 grams water and mix again.
Wrap the dough or cover the bowl and rest it for 20 minutes at room temperature. This pause hydrates the flour and relaxes the gluten, which makes thin rolling much easier. Heat the oven to 375 degrees Fahrenheit and line a sheet pan with parchment.
Divide the dough into two pieces. Roll one piece between two sheets of parchment until it is 1 to 2 millimeters thick, roughly the thickness of a nickel. Thicker areas will stay chewy while the edges burn, so take an extra minute to check the center. Peel away the top parchment, slide the dough onto the pan, and cut it into squares with a pizza wheel or knife. Dock each piece three times with a fork.
Repeat with the second piece. You can bake both sheets at once if your oven heats evenly, but rotate and swap racks halfway through. My old oven has a hot spot near the back right corner, so I watch that area like it owes me money.
Bake until crisp, not merely brown
Bake for 12 minutes, then inspect the crackers. The perimeter should be golden and the middle should look dry. Continue in two-minute increments, up to 16 minutes total. Remove the darkest pieces first if your dough was unevenly rolled. They will crisp further as they cool on the pan for 10 minutes.
This sourdough discard recipe makes about 55 to 65 small crackers, depending on how you cut them. Store completely cooled crackers in an airtight container for three days. If they soften, return them to a 300-degree oven for five minutes, then cool again. Do not seal warm crackers; trapped steam turns crisp food sad.
For extra flavor, add 1 gram smoked paprika or 2 grams sesame seeds. Avoid fresh garlic or wet herbs here because their moisture can interfere with crisping. A pinch of red pepper flakes works, but use 0.5 grams if you want heat without overwhelming the Parmesan.
The failure modes I actually see
The most common problem with this sourdough discard recipe is sticky dough. Usually the discard was thinner than expected or the butter was still warm. Chill the covered dough for 15 minutes, then dust the parchment with 3 grams flour before rolling. Do not keep adding flour by the handful; that creates tough crackers.
If the crackers puff, the dough is probably too thick or was not docked enough. Press the fork firmly through the dough, especially in the center. If they burn before becoming crisp, your oven runs hot or the sheet is too close to the heating element. Lower the temperature to 350 degrees and add three minutes to the bake, checking often.
Bland crackers usually need more concentrated seasoning, not simply more salt. Next time, use 40 grams Parmesan, 1 gram black pepper, and 1 gram dried thyme. If a batch tastes unpleasantly sour, the discard has likely been aging for too long. It is safe to use discard that smells pleasantly tangy, but a harsh acetone smell means I would feed the starter instead and throw the old portion in the trash.
How this recipe fits your starter routine
This sourdough discard recipe is useful after a feeding when you remove 150 grams starter. Instead of tossing that portion, mix the dough immediately or refrigerate it for up to 24 hours. Older discard gives stronger tang and can make the crackers darker, so reduce the baking temperature if the mixture has been cold for several days.
Do not use discard with pink, orange, or fuzzy growth. Scrape down the starter jar after feeding, mark the level with a rubber band, and keep the lid loosely covered. A healthy starter should smell fruity, yogurt-like, or pleasantly acidic. It does not need to smell like a bakery every day; mine has moods.
The dough can also be frozen. Roll it between parchment, stack the flat sheets, and freeze for up to one month. Bake from frozen at 375 degrees for about 16 to 19 minutes. This works best when you cut and dock the dough before freezing, because brittle sheets are difficult to handle later.
A small-batch snack worth repeating
When I want a dependable sourdough discard recipe, this is the one I reach for because the ingredients are ordinary and the feedback is immediate. You can see whether the dough is too thick, smell when the Parmesan turns nutty, and test one cracker before committing the rest to storage.
Serve the crackers with tomato soup, goat cheese, or a bowl of white bean dip. They also make a crunchy topping for salad, broken into rough pieces while still slightly warm. Make the shapes uneven, let one edge over-brown, and write the correction in your notebook: thinner center, cooler oven, more cheese. The dough will forgive you. So will I. Put on the apron and go ahead and do it.
No comments yet.