Overview
The tuna, or prickly pear fruit, is the sweet, fleshy fruit of the nopal cactus (Opuntia spp.). Its flavor ranges from melon-like to berry-like depending on the cultivar. Today it is eaten fresh, in aguas frescas, jams, candies, and in savory sauces using the tart xoconostle variety.
Pre-Hispanic origin and significance
The tuna was central to the diet of pre-Hispanic Mesoamerica. The fruit, called nochtli in Nahuatl, was gathered from wild cacti and later cultivated [1]. The nopal cactus held deep symbolic meaning, featuring in the founding myth of Tenochtitlan, where an eagle perched on a nopal devouring a serpent [2]. Tunas were eaten fresh, dried for preservation, and used in ritual offerings [1][2].
Botanical and seasonal notes
Opuntia ficus-indica and related species produce tunas from late summer through fall in the Altiplano region. The fruit develops from the cactus flower and is covered in small spines (glochids) that must be removed before consumption [3]. Xoconostle varieties are harvested at a tarter stage.
Culinary use today
- Fresh fruit: eaten raw, often peeled and chilled.
- Aguas frescas: blended with water and sugar for a refreshing drink.
- Jams and candies: the sweet, seedy pulp makes preserves and dulces.
- Savory sauces: xoconostle’s tartness is used in moles, salsas, and to cut the richness of fatty meats.
Regional strongholds in Mexico
- Altiplano central (states of Mexico, Hidalgo, Puebla)
- Northern Mexico (Zacatecas, San Luis Potosí, Aguascalientes)
- Nationwide seasonal markets during peak harvest.
Revival or contemporary status
Tuna remains widely consumed in Mexico. Recent attention has focused on cultivar diversity, especially distinguishing sweet tunas from the tart xoconostle used in contemporary savory cooking. Colonche, a fermented beverage from tuna juice, is also being revived [3].
In Los Angeles
Fresh tunas appear seasonally in Mexican groceries (e.g., Vallarta, El Super) from late summer through fall. Processed forms like jams and candies are more widely available year-round.
Cross-cuisine context
No widely recognized analogue exists outside the Americas. The fruit’s texture and sweetness are occasionally compared to melon or fig, but its combination of succulent flesh and edible seeds is distinct. In North Africa and the Mediterranean, Opuntia fruits (often called “cactus pears”) are eaten fresh, but their culinary use there is not pre-Hispanic. The xoconostle’s tartness is sometimes used similarly to tamarind in Mexican cooking.