Preheat the oven at 350 F and grease a cookie sheet with coconut oil or line with parchment paper.
Mix the Devil's Food Cake mix with 2 eggs, vegetable oil, vanilla and flour.
Stir in white chocolate chips and roll the dough into tablespoon size balls. Place on the cookie sheet and flatten a bit.
Bake 8-10 minutes at 350 F
Meanwhile beat the softened unsalted butter with the vanilla extract. Add in the chocolate marshmallow mix and beat. Slowly add in the confectioners sugar one cup at a time until the frosting has combined.
Let the cookies cool and frost the top.