Peel and quarter bananas; freeze until solid. Add frozen, quartered banana pieces to Twister jar, and place lid on jar. Hold lid firmly with one hand, and with the other hand press "Pulse" 15–20 times or until smooth. Turn Twister lid counterclockwise during blending.
Serve with fresh berries, drizzle with syrup, or sprinkle with granola for a little crunch.
Try substituting some of the frozen banana with another frozen fruit, such as strawberries, pineapple, or mango. Or add any of the following before blending is complete:
*Spices such as ground cinnamon, nutmeg, and allspice
*Extracts such as vanilla, almond, and peppermint
*Nut butters such as almond, peanut, and hazelnut
*Chocolate chips, cocoa powder, cacao powder, cacao nibs, or your favorite chocolate sauce/syrup