Melt butter and milk set aside to cool. Grease and flour cookie sheet (15 1/2 x 10 1/2 x 2 inch).
Mix the rest of ingredients with milk and butter mixture. Mix well pour into pan. Bake at 350 degrees F for 20-25 minutes or until tooth pick comes out dry.
When done and still hot, spread jar of peanut butter over cake. Chill until firm.
Melt Hershey bar and spread over the top of chilled cake. You can chill it or not it's up to you (I don't)
By Joanne from Kingston, PA
Since the peanut butter is in the topping, to sub chocolate for it, u may have to add some butter or oil to it, since the peanut butter would make the topping spreadable. If you do add coconut to the batter, don't make it sweetened as you would have to reduce the sugar to compensate.
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