chopped sugar cookies, for garnish (optional)

pistachios, for garnish (optional)

mint chocolate candy, for garnish (optional)

Using mixer, whisk whipping cream until soft peaks form. Add peppermint extract and powdered sugar; mix until well blended. Set aside.

In blender, blend milk, liqueur and ice cream until smooth.

Drizzle chocolate syrup inside soda glass. Pour ice cream mixture into glass. Top with whipped cream and garnish with cookies, pistachios and mint chocolate candy, if desired.