Description
Meet your new morning hero! These bars combine the tangy flavor of sourdough discard with hearty oats, juicy blueberries, and a buttery crumble topping. Soft yet sturdy, they’re perfect for breakfast, lunchboxes, or an afternoon pick-me-up. Plus, they’re a clever way to use that sourdough discard you’d normally toss.
Ingredients
For the Base + Filling:
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1 cup rolled oats (old-fashioned, not instant)
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¾ cup whole-wheat or all-purpose flour
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½ cup sourdough discard (fridge-stored is fine)
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1 large egg
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¼ cup honey or maple syrup
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¼ cup melted coconut oil or butter
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1 tsp vanilla extract
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1 tsp baking powder
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1 cup fresh or frozen blueberries
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Pinch of salt
For the Crumble Topping:
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¼ cup rolled oats
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2 tbsp flour
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2 tbsp coconut sugar or brown sugar
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2 tbsp cold butter or coconut oil
Substitutions:
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No discard? Use ¼ cup Greek yogurt, applesauce, or buttermilk.
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All-purpose flour works if you don’t have whole wheat.
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Frozen blueberries can go straight into the batter.
Instructions
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Preheat & prep pan: 350°F (175°C). Line an 8×8-inch pan with parchment paper, leaving overhang for easy lifting. Lightly grease edges.
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Mix dry ingredients: In a medium bowl, whisk oats, flour, baking powder, and salt.
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Mix wet ingredients: In a large bowl, whisk egg, sourdough discard, honey, melted butter/coconut oil, and vanilla until smooth.
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Combine: Fold dry ingredients into wet until just combined. Don’t overmix—few streaks are fine.
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Add berries: Gently fold in blueberries. Frozen berries may turn batter purple—that’s okay!
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Fill pan: Spread batter evenly in prepared pan.
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Make crumble: Mix topping ingredients in a bowl, using fingers to form clumps. Sprinkle over batter.
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Bake: 25–30 minutes, until golden and center springs back lightly. Toothpick should come out with a few moist crumbs.
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Cool: Let bars cool completely (1–2 hours) on a wire rack before slicing to ensure they hold together.
Notes
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Classic breakfast: Slightly warm with a pat of butter and Greek yogurt.
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Lunchbox-ready: Pair with a boiled egg or cheese stick.
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Dessert twist: Serve warm with a scoop of vanilla ice cream.