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A close-up macro shot of a freshly baked blueberry oat snack bar, highlighting the texture of the golden-brown crumble topping.
FL Recipes

Blueberry Oat Snack Bars (The Only Recipe You'll Need)

These Blueberry Oat Snack Bars feature a chewy oatmeal crust, a juicy blueberry filling, and a crispy crumble topping. An easy and wholesome recipe for breakfast or a snack.
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Prep Time 15 minutes
Cook Time 35 minutes
Total Time 50 minutes
Servings: 16 bars
Course: Breakfast, Dessert, Snack
Cuisine: American
Calories: 185
Ingredients Equipment Method Nutrition Notes

Ingredients
  

For the Crust and Crumble Topping
  • 1 1/2 cups all-purpose flour
  • 1 1/2 cups old-fashioned rolled oats
  • 1 cup packed brown sugar
  • 1 tsp baking soda
  • 1/2 tsp salt
  • 3/4 cup unsalted butter melted
For the Blueberry Filling
  • 2 1/2 cups blueberries fresh or frozen
  • 1/4 cup granulated sugar
  • 2 tbsp cornstarch
  • 1 tbsp lemon juice

Equipment

  • 1 8x8 inch baking pan
  • 2 Mixing Bowls

Method
 

  1. Preheat your oven to 375°F (190°C). Grease an 8x8 inch baking pan or line it with parchment paper, leaving an overhang to easily lift the bars out later.
  2. In a large bowl, whisk together the all-purpose flour, rolled oats, brown sugar, baking soda, and salt.
  3. Pour in the melted butter and mix with a fork until the mixture is crumbly and resembles wet sand.
  4. Press about two-thirds of the oat mixture firmly and evenly into the bottom of your prepared pan to form the crust.
  5. In a separate bowl, gently toss the blueberries with the granulated sugar, cornstarch, and lemon juice until evenly coated.
  6. Spread the blueberry mixture evenly over the crust. Sprinkle the remaining oat mixture loosely over the top.
  7. Bake for 30-35 minutes, or until the fruit filling is bubbling and the oat topping is golden brown.
  8. This is crucial: Allow the bars to cool completely in the pan before cutting. This helps them set properly. For extra clean cuts, chill in the refrigerator for 30 minutes before slicing.

Nutrition

Calories: 185kcalProtein: 2gFat: 8gFiber: 2g

Notes

For Gluten-Free Bars: Swap the all-purpose flour for a 1:1 gluten-free baking flour blend and use certified gluten-free rolled oats.
Storage: Store in an airtight container at room temperature for up to 3 days or in the refrigerator for up to a week.
Keyword blueberry crumble bars,blueberry oat bars,healthy oatmeal bars

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