1 serrano chile, seeds removed and minced
1/4 cup diced red onion
1/4 cup chopped fresh cilantro leaves
1 1/2 Hass avocados, halved, pitted, and sprinkled with liberal amount of salt
1 Roma tomato, diced
Flour tortillas or corn tortilla chips
*A molcajete is a traditional Mexican mortar and pestle made from porous basalt volcanic rock. Another type of mortar and pestle may also be used.