What topping is typically used to add a mild onion flavor to potatoes?

Chives are commonly used as a topping for baked potatoes to introduce a mild onion flavor. They contribute a subtle, fresh taste that complements the creaminess of the potato without overpowering it. This makes chives an ideal choice for those looking to enhance their potato dish with an onion-like flavor that remains delicate and pleasant.

Other toppings like bacon bits and sour cream serve different taste profiles; bacon adds a savory, crispy texture, while sour cream provides richness and tang. The option of "everything" as a topping would include a variety of ingredients, which may overshadow the specific mild onion flavor that chives uniquely provide. Thus, chives stand out as the best option for achieving that desired mild onion taste in potatoes.