Which approach helps ensure a layered cocktail maintains distinct layers without mixing?

• A. Shake vigorously after pouring
• B. Stir until uniform
• C. Use only widely different densities
• D. Pour slowly over the back of a spoon to layer

Answer: (D)

Layered cocktails rely on differences in density between liquids to stay separate. To keep a new layer from mixing with the one below, you need to introduce it gently rather than with agitation. Pouring slowly over the back of a spoon creates a calm, thin stream that lands on the surface of the existing layer, letting gravity and the liquids’ densities do the job of maintaining separation. Shaking or stirring would create turbulence and blend the layers, while simply hoping for a density difference isn’t reliable. This spoon technique gives you precise control to build distinct, stable layers.