01 - Place vanilla ice cream, whole milk, mint extract, sugar if using, and green food coloring into blender canister.
02 - Blend on high speed until completely smooth and creamy. Stop to taste and adjust mint extract or sugar as desired.
03 - Pour the blended milkshake evenly into two tall glasses.
04 - Top each glass with whipped cream and add green sprinkles or a maraschino cherry if desired.
05 - Place a straw in each glass and serve while cold for best texture.