Sourdough Granola
Prep Time: 15 minutes
Fermentation Time (Optional): 8–12 hours
Bake Time: 30–40 minutes
Total Time: 9–13 hours
Servings: ~10 cups (20 servings)
Difficulty: Easy
Flavor Intensity: Mildly tangy, nutty, toasty, slightly sweet
Introduction
Granola is already a pantry hero—perfect on yogurt, as a cereal, or just as a snack. But sourdough granola takes this crunchy classic to the next level. By incorporating sourdough starter discard, we add a subtle tangy depth, enhanced crunch, and a touch of gut-friendly fermentation magic.
It’s a wonderful way to reduce food waste by using your inactive or unfed sourdough discard—no need to throw it out! Instead, you turn it into a toasty, golden treat that stores well and tastes amazing.
Why You’ll Love This Recipe
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Zero waste – uses sourdough discard
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Crunchy, golden, and slightly tangy
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Customizable with your favorite nuts, seeds, and dried fruit
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Naturally sweetened with honey or maple syrup
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No refined sugars or preservatives
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Keeps fresh for weeks!
Ingredients
Base Granola Mix
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3 cups rolled oats (not instant)
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½ cup sourdough starter discard (unfed is fine)
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½ cup chopped nuts (almonds, walnuts, pecans, etc.)
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¼ cup seeds (pumpkin, sunflower, chia, or flax)
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½ cup unsweetened shredded coconut (optional)
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⅓ cup honey or pure maple syrup
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¼ cup melted coconut oil or olive oil
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1 tsp vanilla extract
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½ tsp cinnamon
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¼ tsp sea salt
Optional Add-ins (after baking):
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½ cup dried fruit (cranberries, raisins, cherries)
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¼ cup dark chocolate chips
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Toasted coconut chips
Instructions
Step 1: Mix the Wet Ingredients
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In a large mixing bowl, whisk together:
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½ cup sourdough discard
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⅓ cup honey or maple syrup
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¼ cup melted coconut oil
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1 tsp vanilla extract
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½ tsp cinnamon
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¼ tsp salt
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Your sourdough discard should be at room temperature and stirred down for accurate measurement.
Step 2: Add the Dry Ingredients
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Stir in:
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3 cups rolled oats
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½ cup chopped nuts
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¼ cup seeds
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½ cup shredded coconut (optional)
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Mix well to coat everything evenly.
Step 3 (Optional): Ferment for Digestibility & Flavor
If you want to ferment the granola for deeper flavor and digestibility:
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Cover the bowl with a clean towel or plastic wrap.
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Let it rest at room temperature for 8–12 hours, or overnight.
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Stir well before baking.
Fermenting breaks down phytates in oats and nuts and enhances flavor. Totally optional—but highly recommended!
Step 4: Bake the Granola
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Preheat oven to 325°F (165°C).
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Line a large baking sheet with parchment paper.
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Spread the granola mixture evenly, pressing down slightly.
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Bake for 30–40 minutes, stirring gently halfway through.
For clumpier granola, avoid stirring too often and let it cool completely before breaking apart.
Step 5: Cool and Add Extras
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Remove from the oven and let granola cool completely on the pan.
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Once cool, stir in:
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Dried fruit
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Chocolate chips
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Coconut chips or other extras
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Store in an airtight container at room temperature for up to 3 weeks. You can also freeze it!
Flavor Variations
Chocolate Almond Sourdough Granola
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Use chopped almonds + dark chocolate chunks
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Add 2 tbsp cocoa powder to the wet mix
Blueberry Vanilla
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Add freeze-dried blueberries + a little lemon zest
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Use vanilla maple syrup for extra flavor
Coconut Macadamia
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Use macadamia nuts + coconut oil + shredded coconut
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Add coconut extract for a tropical twist
Spiced Fall Granola
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Add nutmeg, cloves, and ginger
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Use pecans + dried apples + maple syrup
Nutrition Estimate (Per ½ cup serving)
| Nutrient | Approximate Amount |
|---|---|
| Calories | 220 kcal |
| Protein | 5 g |
| Fat | 10–12 g |
| Carbohydrates | 25–28 g |
| Fiber | 3 g |
| Sugar | 8–10 g |
| Sodium | 75 mg |
Note: Based on base ingredients, without fruit or chocolate add-ins.
FAQs
Can I use active sourdough starter?
Yes! Both active and discard work, but discard is best for reducing waste. If using active starter, the flavor may be milder.
Is this granola sour?
Not overwhelmingly. There’s a gentle tang that deepens with fermentation, but it’s subtle and adds complexity rather than sharp sourness.
Can I skip fermentation?
Absolutely. You can bake it immediately after mixing. Fermentation is optional but beneficial for gut health and flavor.
How can I make it gluten-free?
Use certified gluten-free oats and make sure your sourdough discard comes from a GF sourdough starter.
Can I double or triple the batch?
Yes! Just use multiple baking trays or bake in batches to ensure even cooking.
How to Use Sourdough Granola
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On yogurt or smoothie bowls
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With milk or nut milk as cereal
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As a topping for baked apples or crisps
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In trail mix or snack packs
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Sprinkled over ice cream or chia pudding
Pro Tip: Use it as a crunchy crumble topping for muffins, coffee cakes, or desserts.
Sustainability Note
Making sourdough granola is a smart way to use up sourdough discard instead of throwing it away. Less waste, more flavor, better for the planet
Final Thoughts
Sourdough granola is a clever fusion of two favorites—granola’s satisfying crunch and sourdough’s tangy complexity. It’s nutritious, endlessly adaptable, and gives you one more reason to love your sourdough starter. Plus, it’s a perfect homemade gift or meal-prep staple.
Whether you’re new to sourdough or a seasoned baker, this is a no-fuss, high-reward recipe you’ll return to again and again.