01 - Place vanilla ice cream, whole milk, peppermint extract, vanilla extract, and green food coloring into blender canister.
02 - Blend on high speed until completely smooth and creamy, approximately 30-60 seconds. Add additional milk tablespoon by tablespoon if thinner consistency is preferred.
03 - Taste mixture and add more peppermint extract or food coloring as desired. Peppermint extract is potent, so add in 1/8 teaspoon increments.
04 - Divide shake evenly between two tall glasses, wiping any drips from rims with damp cloth.
05 - Top each glass with whipped cream, one maraschino cherry, and green sprinkles. Serve immediately while cold.