Line 9 cups of a mini muffin pan with paper muffin liners.
Melt the baking chocolate in a microwave-safe dish in the microwave. You can also do it on the stovetop in a saucepan. Either way, be sure to stir it a few times to make sure it melts evenly.
Using a basting brush, brush each paper liner with a thin layer of chocolate, put back in muffin pan after lining with chocolate.
Freeze until the chocolate is firm (30-45 minutes)
Thaw bananas slightly.
Blend bananas and peanut butter powder until smooth.
Remove frozen chocolate cups from freezer but leave in muffin pan. Fill each cup with peanut butter banana filling.
Sprinkle the tops of each cup with chocolate chips.
Freeze the cups until the banana filling is firm (1-2 hours)
Remove from freezer. Peel the paper lining off each dessert cup before eating.
Store in freezer safe container in freezer.