01 - Add vanilla ice cream, whole milk, peppermint extract, vanilla extract, and green food coloring to blender container.
02 - Blend on high speed until completely smooth and creamy, approximately 30-60 seconds. Add additional milk 1 tablespoon at a time if thinner consistency is preferred.
03 - Taste shake and add more peppermint extract 1/8 teaspoon at a time if stronger mint flavor is desired. Add additional food coloring drop by drop to achieve vibrant green color.
04 - Divide shake evenly between two tall glasses, pouring carefully down the side to minimize splashing.
05 - Top each glass with whipped cream, one maraschino cherry, and green sprinkles if desired. Serve immediately while cold.