Pour in the vodka and coffee liqueur over the ice.
Add the espresso shot if using.
Stir gently with a bar spoon.
Slowly pour the heavy cream or half and half over the top.
Let the cream float for a layered look, or mix for a creamy blend.
Optional: froth the cream before adding for extra texture.
Serve immediately.
Notes
Use cold ingredients for the best taste. Heavy cream gives a richer texture, while half and half is lighter. Espresso intensifies the coffee flavor. Garnish with cocoa or cinnamon for a twist.