The paloma is a tequila

Tequila

Tequila is a spirit made from the blue agave plant, primarily in the area surrounding the city of Tequila, northwest of Guadalajara, and in the highlands of the western Mexican state of Jalisco....

-based cocktail, most commonly prepared by mixing tequila with a grapefruit-flavored soda such as Squirt or Jarritos

Jarritos

Jarritos is a popular brand of soft drink in Mexico. Jarritos was started by Don Francisco "El Güero" Hill in 1950. The Jarritos brand is currently owned by Novamex, a large independent-bottling conglomerate based in Guadalajara, Jalisco, property of the Hill & ac. Co...

and served on the rocks with a lime wedge. Optionally, the glass may also be rimmed with salt.

Alternatively, the grapefruit soda can be replaced with fresh white or red grapefruit juice (jugo de toronja), club soda (sugar optional), and fresh-squeezed lime juice.

The paloma is the most popular tequila-based cocktail in Mexico.