Which element is not typically included in the definition of a cocktail?

The correct answer is the element of complex preparation. A cocktail is generally defined as a drink that combines mixed ingredients and includes alcoholic content, as well as variability in flavor. The essence of a cocktail is to balance flavors, provide a pleasing aesthetic, and offer refreshment while still being relatively simple to prepare.

While some cocktails may require intricate recipes and advanced techniques, many cocktails can be straightforward to make. The complexity of preparation is not a defining characteristic, as cocktails can range from very simple mixtures (like a gin and tonic) to elaborate creations that could be considered culinary crafts. Therefore, the emphasis is more on the combination of ingredients and the inclusion of alcohol rather than the complexity involved in their preparation.