Place bananas, yogurt and activated charcoal in a food processor. Process until smooth. Transfer to a medium bowl and freeze until firm, about 5 hours.Advertisement
To make ahead: Store in an airtight container in the freezer for up to 1 week. Let soften at room temperature until scoopable, about 20 minutes.
Tip: Not to be confused with a briquette you throw on the barbecue--that you should never eat--activated charcoal powder, also known as activated carbon, is derived from coconut shells and is used as a supplement and to color foods black. It can be found in the supplement section of natural-foods stores. It also claims benefits for detoxing, easing gas and whitening teeth. But there are risks, including constipation and diarrhea, and it can make some prescriptions less effective. If you are not comfortable using the product, simply omit it from this recipe. The fro-yo will still taste great! Read more about activated charcoal.
1 fruit, 1/2 high-fat dairy