Place bananas, sweet cherries, tart cherries, and almond milk in a blender or food processor; process until smooth, scraping down the sides as needed.
To make ahead
While the nice cream will have the best texture if served immediately, it can be stored in the freezer for up to 3 months. Let soften at room temperature for about an hour before serving.
145 calories; fat 1g; sodium 13mg; carbohydrates 36g; dietary fiber 5g; Protein 2g; sugars 23g; niacin equivalents 1mg; vitamin a iu 685IU; potassium 526mg.