What is a common garnish for a Martini?

A common garnish for a Martini is olives or a lemon twist because these ingredients complement the cocktail's flavors exceptionally well. Olives add a briny, savory element that enhances the drink's profile, while a lemon twist provides a refreshing citrus aroma and flavor. The use of these garnishes has become iconic in Martini culture, making them an essential part of its presentation and overall drinking experience.

In contrast, a sugar rim would typically be associated with sweeter cocktails, which is not characteristic of a traditional Martini. A mint leaf is more commonly found in drinks like Mojitos or Juleps rather than in a Martini. Similarly, a cucumber slice may appear in some modern or infused cocktails but does not traditionally accompany a Martini. Hence, olives and lemon twists are the most recognized and appropriate garnishes for this classic drink.