Blueberry Buckle

1/2 cup shortening
3/4 cup sugar
1 egg
2 cups sifted all-purpose flour
2 1/2 teaspoons baking powder
1/4 teaspoon salt
1/2 cup milk
2 cups fresh blueberries

Crumb Topping
1/2 cup sugar
1/2 cup sifted all-purpose flour
1/2 teaspoon ground cinnamon
1/4 cup butter or margarine

OVEN 350°

Thoroughly cream shortening and sugar; add egg and beat till light and fluffy. Sift together flour, baking powder, and salt; add to creamed mixture alternately with milk. Spread in greased 11x7x1-inch pan. Top with berries. Mix dry crumb topping ingredients; cut in butter till crumbly; sprinkle over berries. Bake at 350° for 45 minutes. Cut in squares. Serve warm.