These sourdough breakfast bars are a delicious and nutritious way to start your day! Made with wholesome ingredients like rolled oats, whole wheat flour, and sourdough discard, they have a soft, chewy texture with a hint of tang. The jam filling adds a fruity sweetness, making them perfect for breakfast, snacks, or even dessert.
What Are Sourdough Breakfast Bars?
Sourdough breakfast bars are baked oat bars that incorporate sourdough discard, giving them a unique depth of flavor. The base and crumble topping are made from a mixture of oats, flour, and butter or coconut oil, while a generous layer of jam in the center provides natural sweetness. These bars are a great way to use up extra sourdough discard while creating a satisfying, homemade treat.
Why You’ll Love This Recipe
- Uses sourdough discard – No waste, just deliciousness!
- Quick and easy – Simple ingredients and minimal prep time.
- Customizable – Swap in your favorite jam flavors or adjust the sweetness.
- Wholesome ingredients – Made with oats, whole wheat flour, and natural jam.
- Perfect for meal prep – Make a batch ahead of time for a grab-and-go breakfast.
Ingredients
For the Base & Crumble Topping
- 1 cup (240 g) sourdough discard
- 1 ½ cups (180 g) rolled oats
- 1 cup (125 g) whole wheat or all-purpose flour
- ½ cup (100 g) brown sugar
- ½ tsp cinnamon
- ½ tsp baking soda
- ¼ tsp salt
- ½ cup (115 g) melted butter or coconut oil
- 1 tsp vanilla extract
For the Filling
- ¾ cup (200 g) jam of choice (strawberry, raspberry, or apricot work great!)

Step-by-Step Instructions
Preparing the Base & Crumble Topping
- Preheat oven to 350°F (175°C). Line an 8×8-inch (20×20 cm) baking pan with parchment paper.
- In a large bowl, mix together the oats, flour, brown sugar, cinnamon, baking soda, and salt.
- Add the melted butter (or coconut oil), sourdough discard, and vanilla extract. Stir until the mixture becomes crumbly.
Assembling the Bars
- Press â…” of the oat mixture evenly into the prepared baking pan to form the base.
- Spread the jam evenly over the base layer.
- Sprinkle the remaining oat mixture over the jam to create a crumble topping.
Baking the Bars
- Bake for 25–30 minutes, or until the top is golden brown.
- Remove from the oven and let the bars cool completely before slicing.

Serving Suggestions
- Enjoy these bars with a cup of coffee or tea for a cozy breakfast.
- Serve with yogurt and fresh fruit for added nutrition.
- Sprinkle chopped nuts on top for extra crunch.
Storing and Freezing
Storage Tips
- Store in an airtight container at room temperature for up to 3 days.
- Keep in the refrigerator for up to 1 week for longer freshness.
Freezing Instructions
- Wrap individual bars in parchment paper and store them in a freezer-safe bag.
- Freeze for up to 3 months and thaw at room temperature before eating.
Recipe Variations
- Nutty Crunch – Add ½ cup chopped walnuts or almonds to the crumble topping.
- Lower Sugar – Reduce the brown sugar to ⅓ cup or use a sugar-free jam.
- Gluten-Free – Substitute the flour with gluten-free oat flour.
- Vegan Option – Use coconut oil instead of butter and a vegan-friendly jam.
FAQs
Can I use fresh fruit instead of jam?
Yes! Mash ¾ cup of fresh berries with a tablespoon of honey or maple syrup for a natural filling.
What if I don’t have sourdough discard?
You can replace it with plain yogurt or applesauce for a similar texture.
How do I make the bars crispier?
Bake for an extra 5 minutes for a crunchier texture.
These sourdough breakfast bars with jam are a fantastic way to use up sourdough discard while creating a wholesome, tasty snack. They’re simple to make, easy to customize, and perfect for busy mornings or afternoon treats. Try them with your favorite jam and enjoy a delicious homemade breakfast bar!
Print
Sourdough Breakfast Bars with Jam
- Total Time: 35 minutes
- Yield: 12 bars
Description
These sourdough breakfast bars are soft, chewy, and packed with flavor, featuring a buttery oat crumble and a fruity jam filling. They’re an easy way to use up sourdough discard while making a wholesome breakfast or snack. Perfect for meal prep, these bars are slightly tangy, naturally sweet, and great for on-the-go mornings!
Ingredients
For the Base & Crumble Topping
- 1 cup (240 g) sourdough discard
- 1 ½ cups (180 g) rolled oats
- 1 cup (125 g) whole wheat or all-purpose flour
- ½ cup (100 g) brown sugar
- ½ tsp cinnamon
- ½ tsp baking soda
- ¼ tsp salt
- ½ cup (115 g) melted butter or coconut oil
- 1 tsp vanilla extract
For the Filling
- ¾ cup (200 g) jam of choice (strawberry, raspberry, or apricot)
Instructions
1. Preparing the Base & Crumble Topping
- Preheat oven to 350°F (175°C). Line an 8×8-inch (20×20 cm) baking pan with parchment paper.
- In a large bowl, mix together the oats, flour, brown sugar, cinnamon, baking soda, and salt.
- Add the melted butter (or coconut oil), sourdough discard, and vanilla extract. Stir until the mixture is crumbly.
2. Assembling the Bars
- Press â…” of the oat mixture evenly into the prepared baking pan to form the base.
- Spread the jam evenly over the base layer.
- Sprinkle the remaining oat mixture over the jam as a crumble topping.
3. Baking the Bars
- Bake for 25–30 minutes, or until the top is golden brown.
- Remove from the oven and let the bars cool completely before slicing into squares.
Notes
- Storage: Store in an airtight container at room temperature for 3 days or in the refrigerator for up to 1 week.
- Freezing: Wrap individual bars in parchment paper and freeze for up to 3 months. Thaw before serving.
- Substitutions: Swap whole wheat flour for all-purpose flour or use gluten-free oat flour for a gluten-free version.
- Jam Options: Try strawberry, raspberry, apricot, or blueberry jam for different flavors.
- Prep Time: 10 minutes
- Cook Time: 25 minutes
- Category: Breakfast, Snack
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 bar
- Calories: ~200 kcal per bar