Cream butter or margarine with regular gelatin mix (not necessarily Jello brand) and vanilla , add egg and milk, beat until light and fluffy, add flour, baking powder and salt blend well. Drop from spoon onto greased cookie sheet, bake at 190ºC . For 8 to 10 minutes, watch first batch to get right time baking just until edges are brown. Remove carefully to towel or wire rack to cool. Don't let sit they stick badly!! ----