Blueberry Dessert - cooking recipe

Ingredients

2 c. crushed graham crackers
1/2 c. sugar
1 stick margarine, melted
1 pkg. marshmallows
1/2 c. milk
1 large carton Cool Whip
2 Tbsp. butter
1/2 tsp. lemon juice
1 can blueberry pie filling

Preparation

Melt marshmallows and milk in top of a double boiler.
Cool. When marshmallow mixture is cooled, fold in Cool Whip.
Mix butter and lemon juice into blueberry pie filling.