Makes 2 servings
1 cup milk
1/4 teaspoon peppermint extract
1/4 teaspoon green food coloring
2 cups vanilla ice cream
Place milk, extract, and food coloring in a blender; blend on high for
about 10 seconds. Add ice cream and blend another 15 to 20 seconds on
low so the ice cream doesn't melt too much. It should be thick and
frothy.
For a Chocolate Shamrock Shake, just use chocolate
ice cream instead of vanilla, but skip the green food coloring. It's
not pretty when mixed with chocolate.