Blueberry Oatmeal Bars

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Blueberry Oatmeal Bars are the perfect summer breakfast made with an oatmeal crust topped with a lemon-blueberry filling, finished with a buttery crumb topping, ready in an hour!

Prep Time10

Cook Time40

Total Time50

Course: Breakfast

Cuisine: American

Diet: Gluten Free

Servings: servings

Calories: 272kcal

Author: Jacqui

Equipment

1 8x8" baking dish with parchment paper
1 medium mixing bowl

Ingredients

1 1/2 cups old-fashioned rolled oats certified gluten free
1 cup gluten free all-purpose flour 1:1
1/2 cup light brown sugar
1 teaspoon baking powder double-acting
1 teaspoon ground cinnamon
1/4 teaspoon ground nutmeg
1/2 teaspoon kosher salt
8 tablespoons unsalted butter cold, broken into pieces

For the Blueberries

2 cups fresh blueberries
2 tablespoons lemon juice
1 tablespoon lemon zest
1 tablespoon cornstarch
3 tablespoons granulated sugar

US Customary - Metric

Instructions

Preheat oven to 375°F. Line an 8x8" pan with parchment paper and set aside.
In a medium mixing bowl, whisk together the oats, gluten free flour, brown sugar, spices, and baking powder. Add the pieces of butter and use your hands to combine the butter with the flour mixture until it resembles a wet crumb.
Set aside half of the crumble mixture, and firmly press the other half into the bottom of the pan in an even layer.
In a clean bowl, stir together the blueberries with the cornstarch, lemon juice, lemon zest, and sugar. Pour the blueberries on top of the crust, using a spoon to spread them out into an even later.
Sprinkle the remaining crumble on top of the blueberries evenly. Bake for 35-40 minutes, or until the blueberries are bubbly and the top is golden brown. Remove from the oven and cool completely before cutting into squares.

Notes

Click on the time in the instructions to start a timer!

Storage

Refrigerate in an airtight container for 3-4 days.

Freeze in a freezer-safe container for 2-3 months.

Cooking Tips

Press the base firmly into the bottom of the pan so it holds together and doesn't break apart after baking. You can use the bottom of a measuring cup to help you do this.
Be careful not to over-mix the oat mixture. After adding the butter, you want the dry ingredients to look wet and everything to be combined, but not over-worked.
When the bars are done, the middle should be bubbling and the top should be golden brown.
Let the bars cool completely to give the middle a chance to set.
You should be able to lift the bars out by the parchment paper to make it easier to cut them evenly. Make sure you leave some parchment paper on the sides when you're pouring the filling in, so you have pieces to grab onto.

Nutrition