01 - Brew strong coffee and espresso if using, then allow to cool completely.
02 - Place cooled coffee, milk, espresso (if using), cocoa powder, chocolate syrup, peppermint extract, sugar, and ice cubes into the blender.
03 - Blend on high speed until smooth and frothy.
04 - Taste and modify sweetness or peppermint intensity as desired.
05 - Pour into two large glasses.
06 - Optionally garnish with whipped cream, chocolate shavings, and crushed peppermint candies. Serve immediately.