Crumb Slices
["1 yellow cake mix", "1/2 c. butter or margarine", "1/4 c. brown sugar", "1/2 tsp. cinnamon", "1 c. sour cream", "1 egg", "fresh blueberries"]
["Cream together cake mix and butter or margarine and put 2/3 cup aside for topping.", "Add cinnamon and brown sugar to reserved topping.", "Press remaining crumb mixture into 9 x 13-inch pan. Spread with fresh blueberries, then beat sour cream and egg together.", "Pour over fruit.", "Then top with the reserved topping. Bake at 350\u00b0 for 25 minutes."]
["yellow cake", "butter", "brown sugar", "cinnamon", "sour cream", "egg", "fresh blueberries"]