Abstract: A two-compartment drinking vessel includes an outer drinking vessel having a closed bottom section, a generally vertical sidewall section with an upper rim there around and an open top. Within the outer vessel is an inner, closed bottom, linear vessel with a sidewall section having an upper rim there around and an open top. The interior vessel sidewall section extends essentially diagonally from at or near the outer vessel upper rim to a selected point adjacent the sidewall and bottom sections of the outer vessel. Liquids poured into the outer vessel and inner vessel are separately contained until the two-compartment vessel is tilted to drink. The liquid contained by the inner vessel flows from the two-compartment vessel prior to the liquid contained in the outer vessel flowing therefrom.