Crust
1 1/4 cups butter
4 cups flour
1 cup granulated sugar

Filling
2 cups mangoes, sliced thinly
1/4 cup all-purpose flour
2/3 cup granulated sugar
1 1/2 teaspoons cinnamon

Cream crust ingredients. Pat 1/2 of mixture into a 13 x 9-inch pan. Set aside other half.

Mix filling ingredients (sugar, flour, cinnamon), and fold in mangoes. Spread over crust; add remaining crust mixture over mango filling. Bake at 375 degrees F for 30 minutes.