01 - In a blender, combine the vanilla ice cream, whole milk, mint extract, green food coloring, and sugar (if using).
02 - Blend the mixture until it is smooth and creamy.
03 - Add the chocolate chips to the blender and pulse briefly. The goal is to just mix them in, allowing small pieces of chocolate to remain throughout the shake.
04 - Carefully pour the prepared milkshake into two tall glasses.
05 - If desired, top each serving with whipped cream, a sprinkle of extra chocolate chips, and a maraschino cherry. Serve immediately for optimal enjoyment.