A tart, vibrant salsa made from xoconostle (sour prickly pear) with chiles and onion. This vegetarian, fresh condiment offers a unique, tangy flavor prized in Mexican family cooking.
Slice the xoconostle lengthwise, peel off the skin, remove seeds, and cut the flesh into chunks.
Roast the xoconostle flesh, Roma tomatoes, onion, garlic, and serrano chiles on a dry skillet over medium-high heat, turning until charred and softened (8–10 minutes).
Let the roasted vegetables cool for 5 minutes, then transfer them to a mortar or food processor.
Add salt, lime juice, and cilantro. Pulse or mash just until desired chunky texture; avoid over-blending.
Taste and adjust seasoning with more salt or lime juice as needed. Serve at room temperature.