01 - In a blender, combine vanilla ice cream, milk, peppermint extract, vanilla extract, and green food coloring. Blend until smooth and creamy, scraping down the sides as needed.
02 - Taste the milkshake and adjust peppermint extract or food coloring quantities if desired.
03 - In a separate chilled bowl, whip the heavy cream with powdered sugar and vanilla extract until soft peaks form.
04 - Pour the blended milkshake into two tall glasses.
05 - Top each glass generously with the prepared whipped cream.
06 - Garnish with green sprinkles and a maraschino cherry, if desired. Serve immediately with straws.