The grands sure devoured these quickly. I have been using the same recipe for years. Not sure where I got that one from. I have heard them called No Bakes and Missouri Cookies. Here is what I do:
2 cups sugar
3 Tbls cocoa powder
1/2 cup (1 stick) butter
1/2 cup milk
pinch of salt
3 cups quick cook oats (rice crispies are good also)
1/2 cup peanut butter
1 tsp vanilla
In a large sauce pan, bring the milk, sugar, cocoa, butter and salt to a rolling boil. Keep stirring, boil for 1 full minute. Remove from heat and add the peanut butter, stir to be sure all melted. Add the vanilla and the oats. Stir to combine. Using tablespoons, spoon onto waxed paper on a cookie sheet. Let set in the fridge for about 30 minutes. I do keep these in an airtight container.
Enjoy!