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Seed & sourdough crackers: a crunchy snack for any time of day

Crunchy seed and sourdough crackers on a wooden board

Got leftover starter in the fridge and not sure what to do with it? Before you toss it, there are so many ways to turn it into something delicious. One of my favorites is making these seed and sourdough crackers: thin, crunchy, full of flavor and super easy to make.

This recipe is perfect if you love home baking and you're looking for new ways to use what's already in your kitchen. With a mix of seeds, rolled oats, spices and sourdough discard, you can make a versatile snack that works just as well for a quiet afternoon as it does for sharing with friends.

Best of all, you can customize it with your favorite seeds and seasonings, so every batch can taste a little different.

A homemade snack that's always good to have on hand

Sometimes you just want something crunchy: a break between meals, a snack while you work or a nibble to go with a good conversation. Instead of always reaching for packaged products, making your own crackers lets you choose the ingredients and adjust the flavors to your liking.

These crackers are a homemade option made with simple ingredients. The seeds add texture and variety, while the leftover starter helps bind the mix and adds its signature tang.

Serve them on their own or with hummus, guacamole, cream cheese, homemade dips or your favorite spreads. They're also a great addition to a snack board when you have guests over.

Put your sourdough discard to good use

Keeping a starter active usually means removing part of it at each feeding. Instead of letting that discard end up in the trash, you can use it in recipes like this one.

Combining starter, oats and seeds makes a simple mix that you spread into a thin layer before baking. The result is light, crunchy crackers, ideal if you want to get more out of your home-baking routine.

Plus, when you make them yourself, you control the amount of salt and choose the seeds and spices you like best.

Sunflower, pumpkin, sesame and flax seeds are just some of the options you can mix and match for different textures and flavors. The oats round out the mix and help give it body.

Ideas to customize your crackers

One of the best things about this recipe is that you don't have to stick to a single combination. With small changes you can create different flavors without making it any harder.

  • Mediterranean herbs: try oregano, thyme, rosemary or herbes de Provence.
  • Garlic and spices: add garlic powder, paprika or black pepper for a bolder flavor.
  • A touch of turmeric: add a little turmeric and pair it with pepper and other mild spices.
  • Extra seeds: play with the ratios of sesame, flax, sunflower and pumpkin seeds to change the texture.
  • A little heat: use a pinch of dried chili or hot paprika if you like bolder flavors.

Start with small amounts of seasoning and adjust the mix in later batches until you find your favorite combination.

The secret to really crunchy crackers

For a crunchy texture, two things matter most: spreading the mix evenly and letting it lose enough moisture as it bakes.

Aim for a thin, even layer on the tray, spreading the mix well so you don't end up with thick spots that stay soft while other areas brown quickly.

It's also important to keep an eye on the oven during the last few minutes. If the crackers still feel moist, they'll need more drying time. You can check the texture as they cool, since they usually firm up as they come down in temperature.

If your oven builds up a lot of steam, venting it briefly can help release moisture, as long as the manufacturer allows it and you take the necessary precautions. Avoid leaving the door open for long, as it can throw off the temperature and the bake.

How to store them

Once baked, let the crackers cool completely before storing them. Then place them in a clean, airtight container in a cool, dry place.

How long they keep depends on how dry they are and how they're stored. If they lose their crunch, you can warm them briefly in the oven and let them cool again before serving.

If you notice moisture, mold or any strange smell, throw them out.

A simple recipe to get more out of your starter

These crackers prove that sourdough discard can become practical, flavorful bakes. With just a few ingredients and a little creativity, you'll have a homemade snack you can adapt to any occasion.

Make them for your snacks, serve them with your favorite dips or add them to your next snack board. Once you find your ideal mix of seeds and spices, you'll definitely want to make them again.

Ready to give them a try? Save this Golden Crumbs Kitchen recipe and discover a new way to use your leftover starter.

Golden Crumbs Kitchen — Everyday recipes made with love.

Seed & sourdough crackers
Recipe card · Golden Crumbs Kitchen

Seed & sourdough crackers

A crunchy, tasty way to use up your sourdough discard: perfect for snacking or serving with your favorite dips.

Prep time5 min
Bake time45 min
Resting time1 h
Total time2 h 5 min
CourseSnack
Servings4

What you'll need

  • 1 bowl
  • 1 kitchen scale
  • 1 spoon
  • Parchment paper
  • 1 baking sheet
  • Bench scraper (optional)

Ingredients

  • 130 g pumpkin seeds
  • 130 g sunflower seeds
  • 70 g golden flaxseeds
  • 70 g rolled oats
  • 50 g chia seeds
  • 50 g sesame seeds
  • 300 g water
  • 150 g sourdough discard
  • 10 g salt
  • 1 tablespoon oregano or another spice of your choice

Step by step

  1. 1In a bowl, mix all the seeds with the rolled oats.
  2. 2Add the water, sourdough discard, salt and oregano, and stir well with a spoon. At first the mixture will look pretty runny.Sourdough starter being poured over seeds in a bowl
  3. 3Let it rest for at least 1 hour (it can sit for up to half a day).
  4. 4After resting, the mixture should be thick. If it's still very runny, add a little more oats and wait another hour.Thick seed and sourdough mixture with a wooden spoon
  5. 5Preheat the oven to 180 °C (350 °F).
  6. 6Line a baking sheet with parchment paper and spread the mixture into a thin layer, as even as possible; a bench scraper helps a lot.Hands spreading the seed dough on a floured surface
  7. 7Bake until the crackers are hard and dry, 30 to 60 minutes. Every so often, open the oven for a moment to let the steam out.
  8. 8Let them cool completely and break them into pieces of whatever size you like.
  9. 9Serve them or store them in an airtight container in a cool, dry place. The better baked and drier they are, the longer they'll stay crunchy.
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