01 - Combine vanilla ice cream, milk, peppermint extract, vanilla extract, and green food coloring in a blender. Blend until completely smooth and creamy.
02 - Taste the shake and adjust peppermint extract or food coloring as desired to achieve preferred flavor intensity and color.
03 - In a chilled bowl, whip heavy cream with powdered sugar and vanilla extract using a hand mixer or whisk until soft peaks form.
04 - Pour the blended shake into chilled glasses, filling each about three-quarters full to leave room for topping.
05 - Top each shake generously with the prepared whipped cream, creating a fluffy layer on the surface.
06 - Sprinkle with green sanding sugar or sprinkles and add a maraschino cherry on top. Serve immediately with straws.