You know that moment when you realize you’ve got a jar of sourdough starter discard sitting in your fridge, and you just can’t bear to toss it out? That’s exactly how these seeded sourdough discard crackers came to be in my kitchen! One sleepy Sunday morning, I stared at that bubbly discard and thought, “There’s got to be something delicious we can do with you.” A few experiments later—voilà!—crispy, golden crackers loaded with seeds and just the right amount of crunch. Now, my grandkids beg me to make these every week, and honestly? I don’t mind one bit. They’re the perfect way to use up that discard, and trust me, once you try them, you’ll never look at sourdough scraps the same way again.

Table of Contents
Table of Contents
Why You’ll Love These Seeded Sourdough Discard Crackers
Oh, where do I even begin? These crackers are my little kitchen miracle—simple, satisfying, and packed with goodness. Here’s why they’ll steal your heart:
- No waste, all taste: That sourdough discard? It’s the star here, turning what might’ve gone down the drain into something crispy and crave-worthy.
- Crunch you can trust: Golden-brown edges with just the right snap—perfect for dipping, stacking with cheese, or sneaking straight from the jar.
- Seeds galore: Every bite’s got a little party of sunflower, pumpkin, sesame, and flax seeds. (Feel free to mix it up with whatever you’ve got!)
- Wholesome & simple: Just a handful of pantry staples, no fancy tricks—just honest, homemade goodness.
Honestly? Once you bake a batch, you’ll wonder how you ever lived without them.
Ingredients for Seeded Sourdough Discard Crackers
Gather up these simple ingredients—most of them probably live in your pantry already! The beauty of these crackers is how humble yet mighty each component is. Here’s what you’ll need:

- Sourdough starter discard (220g / 1 cup): That bubbly, neglected starter in your fridge? It’s about to shine. No need to feed it—just scoop and go!
- Olive oil (50g / ¼ cup): A good glug gives these crackers their irresistible crispness.
- All-purpose flour (125g / 1 cup), plus extra for dusting: The trusty backbone that holds everything together.
- Raw sunflower seeds (45g / heaping ¼ cup) & raw pumpkin seeds (45g / heaping ¼ cup): They add the best crunch and nutty flavor.
- Sesame seeds (18g / 2 tbsp) & flaxseed (18g / 2 tbsp): Tiny but mighty for texture and nutrition.
- Coarsely ground black pepper (½ tsp) & kosher salt (¼ tsp Diamond Crystal or ⅛ tsp Morton): Just enough to make the flavors pop.
- Flaky sea salt (optional, for sprinkling): Because a little extra salt on top never hurt anybody!
See? Nothing fussy—just real ingredients ready to work their magic.
How to Make Seeded Sourdough Discard Crackers
Now comes the fun part—turning that sticky dough into golden, crispy perfection! Don’t worry, I’ve made these more times than I can count, and I’ll walk you through every step. Here’s how we do it:

- Heat your oven to 325°F (165°C) with a rack right in the center. This low-and-slow bake gives us that perfect crisp without burning those precious seeds.
- In a big bowl, stir together the starter discard and olive oil until it looks like a shiny, bubbly soup. No fancy mixer needed—just grab a trusty wooden spoon!
- In another bowl, whisk together the flour, all those glorious seeds, pepper, and salt. This is where the magic flavor starts!
- Add dry ingredients to wet and stir with a fork until it forms a shaggy dough. It’ll look messy—that’s exactly right!
- Knead by hand just until it comes together into a soft, slightly sticky ball. About 30 seconds does the trick—we’re not making bread here!
Rolling and Cutting Tips
Here’s my secret for perfect crackers every time: roll between two sheets of floured parchment paper to prevent sticking. Aim for that sweet spot between ⅛- and 1/16-inch thick—thin enough to snap, thick enough to hold all those seeds. A bench scraper makes clean cuts easy, but a pizza wheel works too! Lightly press down—don’t drag—for neat squares.
- Roll out the dough on floured parchment into a big rectangle (about 16×12 inches). Sprinkle with flaky salt if you’re feeling fancy, then give it one more gentle roll to press those crystals in.
- Cut into 40 crackers (2½-inch squares) using quick, confident cuts. No perfection needed—rustic is charming!
- Bake for 30-35 minutes, rotating halfway, until golden brown and crisp. Your kitchen will smell absolutely heavenly!
- Let cool completely on the baking sheet—I know it’s hard to wait, but this is what gives them that signature crunch.
If the dough sticks while rolling? Just dust lightly with flour. Too thick? Roll again. Too thin? Ball it up and start over—this dough is very forgiving, I promise!
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Irresistible Seeded Sourdough Discard Crackers You’ll Crave
Crispy seeded sourdough discard crackers with a mix of sunflower, pumpkin, sesame, and flax seeds. Perfect for snacking or pairing with cheese.
- Total Time: 50 minutes
- Yield: 40 crackers 1x
Ingredients
- 220 grams (about 1 cup) sourdough starter discard
- 50 grams (¼ cup) olive oil
- 125 grams (1 cup) all-purpose flour, plus more for dusting
- 45 grams (heaping ¼ cup) raw sunflower seeds
- 45 grams (heaping ¼ cup) raw pumpkin seeds
- 18 grams (2 tablespoons) white or black sesame seeds
- 18 grams (2 tablespoons) raw flaxseed or raw hemp hearts (or a mix)
- 2 grams (½ teaspoon) coarsely ground black pepper
- 1 gram (¼ teaspoon Diamond Crystal or ⅛ teaspoon Morton) kosher salt
- Flaky or coarse sea salt, for sprinkling (optional)
Instructions
- Heat the oven to 325°F (165°C) with a rack in the center.
- In a large bowl, stir together the starter discard and olive oil.
- In a small bowl, stir together the flour, seeds, pepper, and salt.
- Add the dry ingredients to the wet. Use a fork to stir until it forms a shaggy dough.
- Knead the dough by hand until it forms a sticky, soft ball.
- Roll out the dough on floured parchment paper into a 16-by-12-inch rectangle (⅛- to 1/16-inch thick).
- Sprinkle with flaky salt (optional) and lightly roll again.
- Cut into 40 crackers (2 ½-inch squares) using a bench scraper.
- Bake for 30-35 minutes, rotating halfway, until golden and crisp.
- Let cool completely before breaking apart and storing.
Notes
- Use pre-cut parchment for easy handling.
- If dough sticks, dust lightly with flour.
- Store in an airtight container for up to 1 week.
- Prep Time: 15 minutes
- Cook Time: 35 minutes
- Category: Snack
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
Nutrition
- Serving Size: 10 crackers
- Calories: 120
- Sugar: 0g
- Sodium: 50mg
- Fat: 6g
- Saturated Fat: 1g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 14g
- Fiber: 2g
- Protein: 3g
- Cholesterol: 0mg
Baking and Storing Seeded Sourdough Discard Crackers
Now listen close, because here’s where patience pays off! Those gorgeous golden crackers need to cool completely on the baking sheet before you even think about breaking them apart. I know it’s tempting, but trust me—this is what gives them that satisfying snap. Once cooled, tuck them into an airtight container (my old cookie tin works perfectly) where they’ll stay crisp for up to a week. If they lose a bit of crunch? Just pop ’em back in a 300°F oven for 5 minutes—good as new!
Seeded Sourdough Discard Crackers Variations
Oh honey, half the fun is making these crackers your own! Once you’ve got the basic recipe down, don’t be afraid to play around—that’s how all the best kitchen creations happen. Here are some of my favorite twists:
- Seed swaps: Out of flaxseed? Chia seeds or hemp hearts work beautifully. Only have pepitas? Double up on those!
- Flavor boosts: Try smoked salt instead of flaky, or add a pinch of garlic powder for savory kick.
- Herb love: A tablespoon of fresh rosemary or thyme kneaded into the dough? Divine with cheese!
The rule? Whatever makes you smile when you take that first crunchy bite.
Nutritional Information for Seeded Sourdough Discard Crackers
Now don’t go counting every crumb, but here’s roughly what you’re getting in each satisfying 10-cracker serving: about 120 calories, 6g of good fats from all those seeds and olive oil, 14g carbs, and 2g fiber to keep things moving. (These are estimates, of course—my kitchen scale isn’t quite as precise as a lab!) What really matters is how darn tasty they are.
FAQ About Seeded Sourdough Discard Crackers
Over the years, I’ve gotten all sorts of questions about these crackers—and hey, I had plenty myself when I first started making them! Here are the answers to what folks ask most:
Can I use active starter instead of discard?
Absolutely! Just know that active starter might make your dough slightly puffier (though still delicious). I prefer discard because it’s thicker and gives a crisper cracker.
Can I freeze the baked crackers?
You bet! Once completely cooled, layer them between parchment in an airtight container and freeze for up to 2 months. No need to thaw—just pop them straight into the oven at 300°F for 5 minutes to refresh.
My dough is too sticky—help!
Oh honey, been there! Just dust your hands and work surface with extra flour. The dough should be slightly tacky but manageable. If it’s downright gooey, add flour 1 tablespoon at a time until it behaves.
Can I make these gluten-free?
I’ve had success swapping the all-purpose flour for a gluten-free blend (add ½ teaspoon xanthan gum if your mix doesn’t include it). The texture will be slightly different but still tasty!
Enjoy Your Seeded Sourdough Discard Crackers
Now go on, dive into that batch of golden goodness! If you love ’em half as much as my grandkids do, leave me a note below—I always love hearing your kitchen stories. Happy crunching from my home to yours!
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