What does "layering" mean in cocktail making?

Layering in cocktail making refers to the technique of pouring liquids of different densities so that they remain distinct and create visually appealing layers. This process relies on the fact that liquids with varying densities will separate when poured carefully.

To achieve the layering effect, a bartender typically uses a spoon to slow down the pour of the lighter liquid, allowing it to float on top of the heavier one. This skill is often employed in cocktails like a B-52, where ingredients such as liqueurs and spirits are layered to form a striking appearance.

The other methods, such as shaking, stirring, or muddling, involve mixing or combining ingredients in a different manner, focusing more on blending flavors rather than creating layers. Thus, the essence of layering lies in maintaining the separation of different liquids, which contributes to both the visual and taste complexity of the cocktail.