Dip that can be made in a molcajete, for short

GUAC

Think of the creamy green spread often paired with chips, named after its main ingredient that starts with an "A." It's a staple at Mexican restaurants and parties.

This clue points to "guacamole," shortened to "GUAC," a popular avocado-based dip. The mention of a molcajete—a traditional Mexican mortar and pestle—hints at how guacamole is often prepared by mashing ingredients in one. The "for short" signals the abbreviated form, making "GUAC" the perfect fit.