Combine flour and baking powder in a medium mixing bowl; gradually stir in 1/2 cup melted butter, mixing well. Stir in 1 egg and milk.
Press mixture into a greased 12- x 8- x 2-inch baking dish. Spread jam over mixture; set aside.
Cream 1/2 cup butter in a large mixing bowl; gradually add sugar, beating well. Stir in remaining egg and vanilla, mixing well. Add coconut, stir well. Spread over jam. Bake at 350° for 30 minutes. Cool and cut into 3- x 1 1/2-inch bars.
Oxmoor House Homestyle Recipes