Apple Bars With Oatmeal Crumb Topping

From the magnolia bakery.

To make the crust: in a large bowl , using an electric mixer on medium speed , beat together the butter and flour until crumbly and well combined.

Transfer the mixture to an ungreased 13x9 inch baking pan.

Using your hands , pat the crust firmly and evenly into the pan.

Bake in a 350 oven for 20 minutes.

Remove from oven a let cool completely , about 45 minutes.

To make the topping: in a large bowl , mix the flour , sugar , oats , and cinnamon together.

With a pastry blender , cut in the butter until the mixture resembles coarse crumbs.

Then using your hands , toss until all the ingredients are well combined.

Set aside.

When the crust is cooled , evenly spread the apple filling over the crust , leaving a 1 / 4-inch edge all around.

Sprinkle the crumb topping over the apple filling.

Sprinkle the additional 3 tablespoons rolled oats over the crumb topping.

Bake for 45 minutes.

Allow to cool to room temperature.

To make the glaze: in a bowl , combine the sugar and water.

unsalted butter, all-purpose flour, light brown sugar, rolled oats, cinnamon, apple pie filling, powdered sugar, water