01 - In a small saucepan over medium heat, whisk together milk, cocoa powder, sugar, and chocolate chips if using, heating until hot and chocolate is fully melted, about 2 to 3 minutes without boiling.
02 - Remove the saucepan from heat and stir in peppermint extract thoroughly.
03 - Brew 2 shots of espresso or prepare 1/2 cup strong brewed coffee and pour into two mugs.
04 - Divide the hot chocolate milk mixture evenly over the coffee in each mug and stir gently to combine.
05 - Top each serving with whipped cream and garnish with crushed peppermint candies or chocolate shavings if desired, serving immediately.