Stir all ingredients together in medium sized mixing bowl.
Make about 1 inch round balls and place on ungreased baking sheets. Put a little sugar in a bowl and dip the tines of a fork in it, then press down on each cookie twice, in a criss cross fashion.
Bake at 350 for about 10 minutes, or until very lightly browned.
If you want to add peanut butter cups or chocolate kisses: Bake the cookies fully and as soon as they are done, remove them from the oven and gently press a chocolate in the center of each one. Then, leave them to cool completely. The chocolate will melt down in there a little bit and attach itself perfectly. Enjoy!