1Cream butter and sugar till fluffy; add flour and mix well. Pat into ungreased 9x9x2 inch baking pan. Bake at 350 F for 12 to 15 minutes. Combine milk, butterscotch pieces, caramel, coconut, and vanilla; spread over partially baked layer. Bake at 350 F till golden brown around edges, 25 to 30 minutes. (Cookies will not appear set.) Cool; cut into squares. Makes 36.