For a jelly-roll size pan:
Base:
- 1 yellow cake mix-dry
- 2/3 cup butter, softened (about 11 tablespoons)
- 1 egg
Middle layer:
- 1 bag miniature marshmallows
Topping:
- 2/3 cup white corn syrup
- 1/4 cup butter, softened
- 2 cups creamy peanut butter
- 2 teaspoon vanilla
Plus:
- 2 cups dry roasted peanuts
For a 9x13 pan:
Base:
- 1/2 yellow cake mix-dry
- 5 Tablespoons butter, softened
- 1 egg
Middle layer:
- 1/2 bag miniature marshmallows (just eyeball it - you can't go wrong)
Topping:
- 1/3 cup white corn syrup
- 2 Tablespoons butter, softened
- 1 cup creamy peanut butter
- 1 teaspoon vanilla
Plus:
- 1 cup dry roasted peanuts