1 pkg. yellow cake mix
1/3 c. butter, softened
1 egg
3 c. mini marshmallows

TOPPING:

2/3 c. corn syrup
1/4 c. butter
2 tsp. vanilla
1 pkg. (12 oz. or 2 c.) peanut butter chips
2 c. crisp rice cereal
2 c. salted peanuts

Heat oven to 350 degrees. In large bowl, combine all base ingredients except marshmallows at low speed until crumbly. Press in bottom of ungreased 13x9 inch pan.

Bake at 350 degrees 12 to 18 minutes, until light golden brown. Remove from oven. Immediately sprinkle with marshmallows. Return to oven 1 to 2 minutes, or until marshmallows just begin to puff. Cool while preparing topping.

In a large saucepan, heat corn syrup, butter, vanilla and chips just until chips are melted and mixture is smooth, stirring constantly. Remove from heat; stir in cereal and nuts. Immediately spoon warm topping over marshmallows; spread to cover. Chill, cut into bars. Store covered.