No-Bake Cookies

2 cups sugar                              3 cups oats
1/2 cup milk                             1/2 cups peanut butter
1/2 cup margarine                     1 TBL vanilla
3 TBL cocoa                             1/2 cup nuts (optional)

Bring first  4 ingredients to boil for one minute.  Remove from heat and add remaining ingredients quickly.  Drop onto waxed paper and cool.