Go Back
Homemade gluten free blueberry oat bars served on a plate

Gluten Free Blueberry Oat Bars

Delight in these Gluten Free Blueberry Oat Bars, a perfect blend of wholesome oats and juicy blueberries for a sweet breakfast or snack.
Print Recipe Pin Recipe
Prep Time 20 minutes
Cook Time 30 minutes
Total Time 50 minutes
Servings: 9 bars
Course: Dessert, Snack
Cuisine: American
Calories: 200
Ingredients Method Notes

Ingredients
  

For the crust and topping
  • 8 tablespoons unsalted butter, melted and cooled
  • 1/2 cup gluten-free flour blend
  • 1/4 teaspoon xanthan gum omit if your blend already contains it
  • 1 cup old-fashioned rolled oats
  • 1/4 cup granulated sugar
  • 1/3 cup packed light brown sugar
  • 1/8 teaspoon kosher salt
  • 1/2 teaspoon baking powder
For the filling
  • 2 cups fresh blueberries (about 12 ounces), rinsed and patted dry
  • 2 tablespoons granulated sugar
  • 2 tablespoons oat flour
  • 1/8 teaspoon kosher salt
For the crust construction
  • 1 egg beaten and at room temperature
  • 1 to 2 tablespoons lukewarm water

Method
 

Preparation
  1. Preheat your oven to 325°F.
  2. Grease a 9-inch square baking pan, lining it with crisscrossed sheets of unbleached parchment paper for easy lifting.
  3. Make the crumble topping by combining melted butter, oats, flour, and sugar in a bowl.
  4. Create the crust by mixing together the necessary ingredients until well incorporated.
  5. Prepare the fruit layer by combining blueberries with sugar and oat flour.
  6. Assemble all layers together in the pan.
  7. Bake in the preheated oven until golden and firm.
  8. Allow to cool before slicing and serving.

Notes

Use room-temperature ingredients for a smoother batter. Chill the butter before mixing for a flakier crust. For added flavor, consider mixing in a handful of chopped nuts or cinnamon. These bars can be served warm with ice cream or honey.