Blueberry Crumble Pie - cooking recipe

Ingredients

1 graham cracker pie crust
1 egg yolk, beaten
1 (21 ounce) can blueberry pie filling
1/3 cup all-purpose flour
1/3 cup quick-cooking oats
1/4 cup sugar
3 tablespoons margarine, melted

Preparation

Preheat oven to 375. Brush bottom and sides of crust with egg yolk. Bake on baking sheet 5 minutes or until light broun.
Pour blueberry pie filling into crust. Combine four, oats, and sugar into small bowl.
Mix in margarine.
Spoon over pie filling.
Bake on baking sheet about 35 minutes or until filling is bubbly and topping is browned.
Cool on wire rack.