Tomatillos, also called Mexican green tomatoes, belong to the nightshade family. They resemble small green tomatoes except that the tomatillo has a papery husk. Look for firm fruit with dry, intact husks when making this guacamole dip.
Skinny Dippers: Baked Tortilla Chips, Crudités, Poached Shrimp
Adapted from "Skinny Dips" by Diane Morgan.