1: Slice bananas and place them in the freezer for a couple of minutes.
2: Spread nut butter on the banana slices to make little sandwiches and place them back in the freezer while you melt the dark chocolate.
3: Melt your chocolate (using a double boiler on the stove).
4: Dip your banana sandwiches into the melted chocolate and immediately transfer to a baking sheet with parchment paper.
5: Immediately sprinkle your toppings on (as the chocolate will harden quickly).
6: Store them in the freezer until you are ready to eat. Let thaw for a few minutes prior to eating.