How is a White Wine Spritzer typically topped off after filling the glass with wine?

A White Wine Spritzer is traditionally made by combining white wine with a carbonated mixer, which adds a refreshing and bubbly element to the drink. The most common choice for topping off a White Wine Spritzer is club soda. Club soda's neutral flavor enhances the wine without overshadowing it, giving the spritzer a light and crisp taste.

Using club soda ensures that the drink maintains its refreshing nature, as it doesn't impart any additional sweetness or flavor that could detract from the wine's characteristics. The carbonation from the club soda also helps to create a more effervescent experience, which is a hallmark of a well-made spritzer. Other choices like 7-Up, Sprite, and ginger ale, while all fizzy, tend to add additional sweetness and flavor, which deviates from the classic taste profile of a White Wine Spritzer.