NO BAKE COOKIES

This is a recipe my mother used in late 1970's. She passed it down to me, and it's the only recipe I use. I don't know where it came from but it is very similar to other no bake recipes online. NO BAKE COOKIES (recipe) 2 cups sugar, 1/4 cup cocoa, 1/2 cup milk, 1/2 cup margarine, 1 teaspoon vanilla, pinch of salt, 1/2 cup peanut butter, 3 cups oats. Combine sugar, cocoa, milk, and margarine in medium sauce pan to boil, stirring occasionally on medium heat. Boil 2 minutes. Remove from heat. Stir in vanilla, peanut butter, oats, and salt. Drop by spoonful onto parchment paper on flat metal pans. Cool one hour in refrigerator.