Easy Brownie and Peanut Butter Cup Ice Cream Cake
Most of the prep time of the cake is spent waiting for it to freeze. I make this a day ahead to make sure it is well frozen. You can frost it and then freeze it again. The frosting will get hard, but freezing it will not harm it. I would let the whole cake sit at room temp for 10 min before slicing.
I use vanilla ice cream with fudge and caramel swirls for this recipe.
Butterscotch ice cream topping can be used in place of the caramel ice cream topping, if desired.
Substitute chocolate buttercream frosting with mocha or any other flavor you desire.
Substitute miniature peanut butter cups with halved or quartered foil-wrapped peanut butter cups, if needed.