Cherry Bars

1 cup butter or margarine
1 1/2 cups sugar
4 eggs
3 cups flour
2 1/2 teaspoons baking powder
1/2 teaspoon salt
1 teaspoon vanilla
1 can cherry pie filling

Icing
1 cup powdered sugar
1 tablespoon water
1 teaspoon vanilla

Cream butter and sugar; add eggs, one at a time, and blend. Sift flour, salt and baking powder; add a small amount to creamed mixture and beat after every addition. Spread 2/3 of mixture into greased jellyroll pan. Spread cherry pie filling over batter. Drop rest of batter over cherries (take small balls and press flat). Bake in a 350° oven for 30 to 40 minutes. While still warm, drizzle icing over bars. Cut while still warm.