Pop some ice cubes into a mason jar (or a shaker if you have one.)
You'll take 1 part Creme de Cacao, 1 part Coffee Liqueur, 2 parts Vanilla Vodka and 2 parts Half & Half.
Pour it all into your jar. Put the lid on, and shake it into oblivion.
Pour it into a glass.
And sprinkle with some chocolate shavings.