1 yellow cake mix
1/2 c. melted butter
1 egg
3 c. miniature marshmallows
1 (12 oz.) pkg. peanut butter chips
1/2 c. corn syrup
1/2 c. butter
1 tsp. vanilla
2 c. peanuts
2 c. Rice Krispies

Mix cake mix, 1/4 cup butter, and egg. Press into 9 x 13 inch pan. Bake 10-12 minutes at 350 degrees. Place marshmallows over the top of that and return to oven 3 minutes more or until puffed up. Meanwhile, melt chips, corn syrup, and 1/2 cup butter. Add vanilla when melted. Pour over peanuts and Rice Krispies and mix. Spread over marshmallow layer. Refrigerate until set.