No Bake Cookies

*From Mom

1/2 stick butter or margarine
1/2 cup milk
1/4 cup cocoa
2 cups sugar
Mix together and bring to rolling boil for 1 minute
Take off burner

Add 1 tsp vanilla
1/2 cup of peanut butter
Stir until melted
Add 1 1/2-2 cups quick oats