Yummy Bars

1 yellow cake mix
1 egg
1 cup margarine (2 sticks)
2/3 cups light karo syrup
2 teaspoons vanilla
1- 12 ounce package peanut butter chips
1-10 ounce package mini marshmallows
2 cups salted peanuts

Combine cake mix, egg, and 2/3 cup melted margarine. Pat into greased jelly roll pan. Bake at 325 degrees for 10-1 5 minutes. Remove from oven and sprinkle with marshmallows. Bake 5 minutes more. Remove from oven a cool. Melt Karo vanilla, 1/3 cup margarine and peanut butter chips. Pour over marshmallow layer. Sprinkle with salted peanuts. Pat lightly. Cool before cutting.