Using four 8-ounce glasses, pour ¼ cup pitted, sliced fresh cherries into the bottom of each glass. Next, put in a layer of slightly softened vanilla ice cream, followed by a layer of softened Nutella (soften on 50% power in the microwave for 10 to 20 seconds), another layer of vanilla ice cream, and a healthy drizzle of Nutella. Top with 2 tablespoons sliced cherries. Garnish with a sprig of mint and serve immediately.