Rafanata

The dish is documented as a Lucanian Carnival specialty: a baked frittata of beaten eggs, grated pecorino, fresh horseradish and lard or oil, eaten in the stretch from the feast of Sant'Antonio Abate (17 January) to Martedì Grasso. Its defining ingredient, horseradish (rafano), is thought to have reached Basilicata around the 11th century with the Normans and took hold because it grew easily in the region's water-rich land and gave poor kitchens a cheap, vitamin-rich, sharply flavoured root — earning it the local epithet «il tartufo dei poveri», the truffle of the poor. The Rafanata is tied especially to the Val d'Agri, the Vulture-Melfese and the Matera hills, and a number of towns hold horseradish or Rafanata festivals, among them Viggiano, Marsico Nuovo, Anzi, Pietrapertosa and Stigliano. A distinct Castelsaraceno version — pasta dressed with meat ragù, horseradish and pecorino — was recognised as a traditional agri-food product (PAT) of Basilicata in 2022. No single inventor or founding date is recorded for the frittata itself.

The first impression is the horseradish: a clean, mustardy heat that rises through the nose more than it burns the tongue, then settles as the egg and cheese close around it. Baked, it is far milder and rounder than the raw root — warm and aromatic rather than eye-watering — with the sharp top notes blown off in the oven. The frittata itself is thick, set but still tender, golden and faintly crusted at the edges, salty and savoury from the pecorino. Where sausage or potato goes in, it gains a meatier or softer, more filling body. Eaten warm, it is robust and a little fiery; cold, the horseradish recedes further and the cheese leads.

Two reactions define the dish. Horseradish has no pungency until it is cut: grating ruptures the cells and brings the enzyme myrosinase into contact with the glucosinolate sinigrin, which it converts to allyl isothiocyanate, the volatile, sinus-stinging compound also responsible for mustard and wasabi heat. That compound is volatile and heat-labile, so much of it escapes during baking, which is exactly why the cooked frittata tastes warm and rounded rather than raw and biting. Meanwhile the eggs set by protein coagulation: their proteins denature and link into a gel from roughly 62 to 70°C, trapping air and giving the frittata its tall, tender structure, while a moderate oven (around 180°C) firms the centre without overcooking the edges into rubber. The grated pecorino adds salt, fat and glutamate-driven savouriness, and a little fat in the pan promotes a thin golden crust. Grating the horseradish at the last moment keeps the most volatile heat for the finished dish; doing it too early lets the isothiocyanate dissipate into the air before it ever reaches the eggs.