Cocktail B-52 with Cointreau liqueur

In equal proportions, pour the sweetest coffee liqueur into the glass first. The next layer is Baileys cream liqueur and the final one is made of Cointreau orange liqueur. Baileys and Cointreau are about the same consistency, so you need to pour carefully along the blade of a knife, trying not to mix the layers, that's the whole complexity of making a cocktail!