Blueberry Oat Crumble Bars

By vealam

Ingredients

• FOR THE BOTTOM LAYER:
• 2 c. all-purpose flour
• 1-1/4 tsp. baking powder
• 3/4 tsp. kosher salt
• 1-1/4 c. Land O Lakes® Unsalted Butter, at room temperature
• 2-1/4 c. powdered sugar
• 4 large eggs
• 2 tsp. pure vanilla extract
• FOR THE BLUEBERRY LAYER:
• 1/2 c. sugar
• 4 tsp. cornstarch
• 2 T. freshly squeezed lemon juice
• zest from one lemon
• 4 c. fresh blueberries
• FOR THE OAT CRUMBLE TOPPING:
• 3/4 c. Land O Lakes® Unsalted Butter, melted
• 1 c. packed brown sugar
• 1-1/2 c. all-purpose flour
• 1-1/2 c. old fashioned oats
• 1/2 tsp. baking powder
• 1/2 tsp. kosher salt
• 1/4 tsp. cinnamon

Details

Servings 24
Adapted from afarmgirlsdabbles.com

Preparation

Step 1

Preheat oven to 350° F. Lightly spray a 9" x 13" pan and set aside. Or line pan with parchment paper, whichever you prefer.

for the bottom layer:
In a medium bowl, whisk flour, baking powder, and salt. In a large bowl, using an electric mixer, beat butter and powdered sugar until light and fluffy, about 1 to 2 minutes. Beat in the eggs, one at a time. With mixer on low, beat in vanilla, and then the flour mixture. Spread batter in prepared pan.

for the blueberry layer:
In a medium bowl, stir together sugar, cornstarch, lemon juice, and lemon zest. Gently fold in blueberries. Spread blueberry mixture evenly over bottom cake layer.

for the oat crumble layer:
In a small bowl, stir together butter and brown sugar. In a separate medium bowl, whisk flour, oats, baking powder, salt, and cinnamon. Stir dry ingredients into the wet until incorporated. With your fingers, break up dough, crumbling it onto the top of the blueberry layer, leaving some larger chunks here and there. If you like to have some of the pretty blueberries peeking through on top of the cake, poke a few blueberries randomly up through the oat crumble layer.

Bake until cake is set and the oat crumble layer is nicely golden, about 70 to 75 minutes. Let cool completely in pan and then cut into bars. Serve as is, or with some freshly whipped and sweetened cream.