Group #1:

1 3/4 c. flour
2 tsp. baking powder
1/2 tsp. salt
1/4 c. shortening
1 c. sugar
2 eggs
1/2 c. milk
1 tsp. vanilla

Group #2: 4 tsp. flour

Mix ingredients in group #1 together. Pour in greased and floured 9 x 13 inch pan. Sprinkle blueberries on top. Bake at 350 degrees for 1 hour.