An effervescent tablet for direct use as an additive in hot coffee or hot water includes one or more creamer additives, pH stabilizing agents, effervescence agents, and solubility agents. In one embodiment, the tablet includes dry coffee and, in another embodiment, the tablet excludes it. The creamer additive(s) may be dairy and/or non-dairy. The effervescence agent(s) includes sufficient effervescence to separate the tablet upon placement of the tablet in the hot coffee or water and, in one embodiment, to further create foam on the surface of the coffee so as to yield an instant frothy latte or cappuccino. The pH stabilizing agent(s) stabilizes a pH of the coffee and the solubility agent(s) facilitates expeditious dissolution of the tablet in the coffee or water. Various other ingredients and agents may be included in the tablet to enhance flavor, improve mouth feel, enhance foam production, or achieve other desired characteristics or results.
