Berry Oatmeal Crumble Bars

I made these Berry Bars a while back, and I forgot to blog about them.  We always have a bag of Costco frozen mixed berries in our freezer. I wouldn't waste your money on fresh berries for this recipe.  This recipe is the perfect combination of sweet and tart.  The crust and topping tastes like a brown sugar oatmeal cookie, and the filling is to die for. 

Berry Oatmeal Crumble Bars

Filling: 

3 cups of frozen berries
1 tbsp lemon juice
1/2 cup sugar
2 tbsp cornstarch 

Crumble and Crust:
1 1/2 cups all purpose flour
1 1/2 cups rolled oats (quick-cooking or regular)
1 cup brown sugar
3/4 cup butter, softened and cut into 7-9 large chunks
1/2 teaspoon baking soda
1/2 teaspoon salt
1 tsp vanilla extract

Filling: In a medium saucepan, stir together berries and lemon juice and cook medium heat until fruit is defrosted.
In a small bowl, whisk together sugar and cornstarch, then stir into fruit mixture. Continue cooking until mixture comes to a boil. Boil for 1-2 minutes, until thick. Scrape berry filling into a medium bowl and set aside.

Crust: Preheat oven to 350 and lightly grease a 9×13″ baking pan.
In a food processor (or large mixing bowl), combine flour, oats, brown sugar, butter, baking soda , salt and vanilla extract. Pulse until mixture is thoroughly blended and resembles coarse crumbs. Set aside 1 1/2 cups of this mixture in a medium bowl. Pour remaining crumb mixture into the bottom of the prepared baking dish, spread evenly and pat down. Place filling in dollops over crust and carefully spread to cover entire surface. Squeeze reserved crumb mixture into large clumps with your fingers and sprinkle evenly over the top of the fruit filling.
Bake until golden brown, about 30 to 35 minutes. Cool completely on a wire rack before slicing.
Cut into 20 bars to serve.

 Recipe Source: http://bakingbites.com/2007/05/berry-oatmeal-crumble-bars/