A festive Andean Peruvian classic where guinea pig comes out of the oven with deeply golden skin and meat scented with huacatay, chicha de jora, and yellow chili. The potatoes roast alongside it, catching some of those seasoned juices. It is the kind of dish that can turn an ordinary lunch into a reason to linger at the table.
Turn what you find into an experience you can actually bring to your kitchen.
Pat the guinea pig thoroughly dry inside and out with paper towels. If it comes completely closed, make only enough of an opening to season the cavity, keeping it whole whenever possible. The surface should have no visible moisture, since wet skin will struggle to brown properly.
Blend the huacatay, yellow chili, garlic, chicha de jora, lime juice, most of the oil, cumin, black pepper, and most of the salt into a thick, aromatic marinade. Coat the inside of the guinea pig generously and spread a thinner layer over the skin; leave some of the huacatay mixture inside the cavity and rest for 15 minutes. Before roasting, brush away any thick patches of marinade from the skin so they do not burn before the skin browns.
Preheat the oven to 220°C / 425°F. Cut the Huayro potatoes into thick wedges and toss them with the remaining oil and salt. Spread them over the roasting tray and place the guinea pig on a rack, leaving enough room for air to circulate and for its juices to drip onto the potatoes.
Roast the guinea pig and potatoes at 220°C / 425°F for 15 minutes, then lower the oven to 195°C / 385°F and continue for 30 to 35 minutes. Rotate the tray once for even browning, but avoid spooning juices over the skin. It is ready when the skin is deeply golden and firm, the meat around the joints is no longer raw, and the thickest meaty area reaches about 74°C / 165°F.
Transfer the guinea pig to a board and rest it 8 minutes uncovered, allowing the juices to redistribute without softening the skin. Serve whole or divided into two portions with the roasted potatoes and a little of the tray juices around it rather than over the top. If the skin crackles when cut and huacatay is the first aroma you notice, you reached the target. Done! This one deserves to reach the table whole before somebody starts stealing a corner. 😌
