Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
     1/2                cu all-purpose flour
     1/4  cup           sugar
     3/4  teaspoon      baking powder
     1/3  cup           milk
   1      tablespoon    vegetable oil
     1/2  teaspoon      vanilla
     1/4  cup           peanut butter
     1/2  cup           sugar
   3      tablespoons   unsweetened cocoa powder
   1      cup           boiling water

Preparation:

In a bowl, combine flour, 1/4 cup sugar, and baking powder. Add milk, oil, and vanilla; stir until smooth. Mix in peanut butter. Pour into Crock-Pot. In the same mixing bowl, stir together the 1/2 cup sugar and cocoa powder. Gradually stir in boiling water. Pour mixture over batter in Crock-Pot. Do not stir. Cover and cook on High 2 to 3 hours or until a toothpick inserted comes out clean. Serve warm with vanilla ice cream, hot fudge sauce and top with nuts.