E and B made these. The recipe for Banana Swirl comes from Daniel Tiger’s Neighborhood, and then they added blueberries.
8 frozen bananas, ideally cut into pieces
1 cup (or so) milk
Blueberries to taste
Combine the bananas and some of the milk in a blender. Purée until smooth, adding milk as needed to get a soft-serve consistency. Stir in blueberries and top with more blueberries.