01 - Add the vanilla ice cream, milk, peppermint extract, vanilla extract, and green food coloring to a blender.
02 - Blend on high speed until the mixture is completely smooth and creamy. Add additional milk 1 tablespoon at a time if a thinner consistency is preferred.
03 - Taste the shake and adjust peppermint extract or food coloring as needed to achieve desired flavor intensity and color.
04 - Pour the completed shake evenly into two tall glasses.
05 - Top each glass with whipped cream, a maraschino cherry, and green sprinkles if desired. Serve immediately while cold.