Place ice cream, milk, peppermint extract and green food coloring in a blender. Cover and blend until smooth.
Pour into glasses and top with whipped cream and sprinkles. Serve immediately.
Notes
Some of our favorite toppings and add-ins include the following: crushed up Oreos, crushed Andes mints, hot fudge, chopped up KitKat bars, maraschino cherries, or chocolate ice cream (for a chocolate shamrock shake).