What is used to garnish a Chocolate Cake cocktail?

The correct garnish for a Chocolate Cake cocktail is a lemon. This is due to the flavor profile and presentation of the drink. When garnishing cocktails, it's important to complement the taste of the cocktail itself, and in this case, the tartness and acidity of the lemon enhance the rich flavors of chocolate in the drink.

Typically, cocktails like the Chocolate Cake, which are dessert-oriented, benefit from a contrasting garnish that adds brightness and a refreshing note, and lemon serves that purpose well. It often involves either a twist of lemon peel or a simple lemon wedge, enticing the drinker and balancing the sweetness with a hint of tang.

In contrast, garnishes like strawberry or cherry, while popular in other cocktail contexts, do not align as closely with the intention or profile of the Chocolate Cake cocktail. Olives, known for their briny flavor, are traditionally used in savory cocktails, making them an even less suitable option in this context.