Tomatillo

Husked, not naked

Tomatillos grow inside a distinctive papery husk — pale green when fresh, tan when fully mature. The husk forms first, then the fruit grows inside until it eventually fills and bursts the husk.

A tomatillo ready to pick fills its husk completely but isn’t quite breaking through. Husks must be removed and the sticky fruit rinsed before cooking. The sticky residue is harmless but unappealing.

Different from a tomato

Despite the name and family relationship, tomatillos are culinarily very different from tomatoes:

• Acidic and tart — much more so than tomatoes
• Firm-fleshed — holding shape during long cooking better than tomatoes
• Citrus-bright flavor — almost like green apple meets lime meets unripe tomato
• Lower water content — making thicker sauces

These properties make tomatillos perfect for green sauces, stews, and braising liquids that need acidic complexity without watery thinness.

Salsa verde — the icon

The most famous tomatillo dish is salsa verde — green Mexican sauce. Variations include:

• Raw salsa verde — chopped tomatillo, onion, cilantro, jalapeño, garlic, salt, lime
• Cooked salsa verde — same ingredients but with tomatillos boiled or roasted first
• Salsa cruda verde — pureed in a blender

Each version has its place — raw is bright and crisp, cooked is mellower and richer, blended is silkier. All center on tomatillos as the structural ingredient.

Mole verde

The green mole (mole verde) is one of Mexico’s seven traditional mole sauces — featuring tomatillos as the acidic-tart base, combined with cilantro, parsley, pumpkin seeds, garlic, chili, and traditionally chicken or pork.

Unlike the heavier brown moles, mole verde is bright, tangy, and herbal — closer to a sauce than the dense gravy-like browns. Tomatillos are essential to its character.

Mexican kitchen staple

In Mexican households, tomatillos are everyday cooking staples — bought by the kilo, roasted on a griddle (comal), pureed for daily use in salsas, soups, and stews.

The roasting process is key: a charred-skin tomatillo, blackened from direct heat, develops smoky-sweet character that transforms the flavor. Many Mexican cooks consider raw tomatillo and roasted tomatillo essentially different ingredients, used for different purposes.

A New World original

Tomatillos are strictly New World in origin — pre-Columbian Mexican agriculture domesticated them at least 1,500 years before Spanish colonization. The Aztecs called them tomatl — and Spaniards adapted that to “tomato” for what we now call the red tomato. The original tomatillo became tomatillo (little tomato).

This naming inversion is part of why the two foods are conceptually confused even though their culinary roles are quite distinct.