Easy Blueberry Crumble Bar Recipe
Made with fresh blueberries and a simple, really delicious crust and crumble topping, these blueberry bars are the perfect treat!
Servings: 9 servings
Ingredients
For the crust and crumble:
- 1 ½ cups flour
- 1 ½ cups oats
- 1 ½ cups brown sugar
- 1/4 teaspoon fine sea salt
- 9 tablespoons butter 1/2 cup, or 1 stick, plus 1 tablespoon, softened
- 1 egg whisked
For the filling:
- 1 pint blueberries about 2 cups
- 2 tablespoons lemon juice about one lemon
- ⅓ cup sugar
- 1 tablespoon cornstarch
Instructions
- Preheat the oven to 350 F and line a 9x9 pan with parchment paper.
- In a large bowl, whisk together the flour, oats, brown sugar, and salt.
- Add the butter to the flour mixture and cut it in with a fork, or work the mixture with your hands. Once the mixture takes on a sand-like texture, mix in the egg until fully combined.
- Add the blueberries to a saucepan along with the lemon juice and sugar, then let cook over medium heat for about 10 minutes, until the blueberries have burst.
- Whisk the cornstarch with two tablespoons water, then pour it into the blueberry mixture. Once the mixture boils and thickens, remove it from heat.
- Press half of the crust mixture into the bottom of the pan, then pour the blueberries over top. Crumble the rest of the mixture over the blueberries.
- Bake for 35-40 minutes, until the crust has browned. Let cool, then slice and serve.
Notes
- Keep things super easy by skipping the homemade jam and using a 13-ounce jar of store-bought blueberry jam instead.
- For gluten-free: use a cup-for-cup gluten-free flour (we like King Arthur) and gluten-free oats.
Nutrition
Calories: 425kcal | Carbohydrates: 72.4g | Protein: 5.2g | Fat: 12.4g | Saturated Fat: 7.5g | Cholesterol: 51.2mg | Sodium: 84.3mg | Fiber: 3g | Sugar: 43.2g