I think I got this recipe from my college roommate Mandy. It has been my favorite no bake recipe since. I love the peanut butter addition :)
8-10 Tbsp unsweetened cocoa
2 cups sugar (optional - 1 brown, 1 white)
2/3 c evaporated milk
1/2 cup butter
3/4 cup peanut butter
3 cups oats
Mix cocoa and sugar together on stove on low heat. Stir in evaporated milk. Bring to boiling and boil for about 1 minute. Add butter, peanut butter and oats.
Once thoroughly mixed, spoon onto greased pan and freeze for best results.
I sometimes mix in some coconut as well.