Cake Layer (1st/base layer)

1/2 c butter, softened

1 box vanilla, white, or yellow cake mix (I used yellow)

1 egg

1 tsp vanilla extract

Marshmallow/Peanut Butter Layer (2nd layer)

2/3 c marshmallow creme

2/3 c peanut butter

1 can (14 oz) sweetened condensed milk

1 tsp vanilla extract

White Chocolate Layer (3rd layer)

1 bag (12 oz) white chocolate chips

White Chocolate Vanilla Buttercream Frosting Layer (4th/ top layer)

1/4 c butter (half stick)

1/3 c white chocolate (I used 2 baker’s squares of white chocolate, or use white chocolate chips)

2 c powdered sugar (variable from 1.5 to 3 cups based on desired consistency)

2 tbsp cream (or milk. I used Coffeemate Vanilla coffee creamer)

1.5 tsp vanilla extract