A beverage flavoring applicator may have a housing having an internal channel, a cup assembly disposed in the internal channel, the cup assembly having a first cup having a first chamber with a first flavoring substance disposed in the first chamber, a second cup having a second chamber with a second flavoring substance disposed in the second chamber, the first and second cups being nested one within the other, and a plunger slidably engaged with the housing, the plunger having a spike configured to rupture the first and second cups upon movement of the plunger from a first position to a second position with respect to the housing, thereby dispensing the first and second flavoring substances from the applicator. The applicator may engage with a beverage container, either with or without an adapter. Some embodiments may have a bottle opener. Methods of making such applicators and adapters are also described.