A dispensing cap including a first housing portion defining a first chamber, a lid coupled to the first housing and defining an outlet, the lid movable between a first position and a second position, a second housing portion defining a second chamber in fluid communication with the first chamber, the second housing portion further defining a third chamber separate from the second chamber, wherein when the lid is in the first position, the outlet is in fluid communication with the second chamber to dispense a first volume of fluid, and wherein when the lid in the second position, the outlet is in fluid connection with the second chamber and the third chamber to dispense a second volume of fluid. A method of operating a dispensing cap is also provided.