A bottle cap is provided that includes a bottle cap portion and an inner cup. Each of the cap portion and the inner cup has a bottom and an opening, and a cavity in between the bottom and the opening. The inner cup is preferably disposed within the cap portion in an orientation upside down relative to the cap portion and a certain distance from the cap so that the cavities of each are in communication with each other. This allows liquid to flow from the bottle that the cap is placed on into the cavity of inner cup, and from the cavity of the inner cup into the cavity of the cap when the bottle cap is tilted to the side and thereafter returned into an upright position.