Chocolate Chip Twinkles

Cream butter; slowly add in powdered sugar. Blend in egg yolk and vanilla; set aside. Combine flour, cornstarch and salt; blend well into butter mixture. Stir in coconut and chocolate chips; shape into walnut size balls and place on ungreased cookie sheets. Slight flatten with the bottom of a glass that has been dipped in sugar; bake at 375F for 12 minutes.
Makes 4 dozen.

If you want to make them a bit more festive for Christmas, place a small piece of candied cherry in the center before baking.