Cream together butter and sugars.

Add egg and vanilla, and cream til light and fluffy.

Stir together flour, baking powder, baking soda, and salt. Stir into creamed mixture.

Stir in Rice Krispies cereal and flaked coconut.

Shape into 3/4 inch balls, and place about 2 1/2 inches apart on ungreased baking sheet.

Bake at 350° for about 10 minutes or til lightly browned. Cool slightly, remove from pan.