Blueberry Buckle

1/2 c shortening
1/4 c sugar
1 egg
1 c flour
2 tsp baking powder
1/4 tsp salt
1/2 c milk
16 oz frozen blueberries
2 tsp lemon juice
1/2 c flour
1/4 c sugar
1/4 c soft margarine
1 tsp cinnamon

Beat 1/2 cup shortening and 1/4 cup sugar together. Add egg, beat. Combine 1 cup flour, baking powder and salt. Add alternately with milk to shortening mix. Spread batter in 9" pan. Mix blueberry and lemon juice. Sprinkle over batter. Mix 1/2 cup flour and 1/4 cup sugar, margarine, and cinnamon. Mix. Crumble over blueberries. Bake at 350° for 45-55 minutes.