Peanut Butter Fudge Bars

From: Taste of Homes 2003
I made these for a barbecue and everyone enjoyed them. They are loaded but very yummy.

1 pkg yellow cake mix
1 cup creamy peanut butter
1 egg
½ cup vegetable oil
1 can (14 oz) sweetened condensed milk
1 cup semisweet chocolate chips
2 tbsp butter

In a bowl, combine cake mix, peanut butter, egg and oil. Press two-thirds of the mixture into a greased 13x9 baking pan. Bake at 350 for 10 min. Cool on a wire rack for 5 min.

In a saucepan, heat the milk, chocolate chips and butter over low heat; stir until blended. Pour over crust. Sprinkle with remaining crumb mixture. Bake for 20-25 min or until golden brown. Cool on a wire rack. Cut into bars. Makes 2 ½ dozen.