Papa a la huancaína is a traditional Peruvian dish made primarily with boiled potatoes and a spicy, creamy sauce called Huancaina sauce. The sauce is typically made from a blend of ingredients including queso fresco (fresh cheese), ají amarillo (yellow chili pepper), garlic, vegetable oil, and lime juice. It is often served as an appetizer or side dish and is garnished with black olives and hard-boiled eggs. The dish is named after the town of Huancayo, where it originated, and it reflects the rich culinary heritage of Peru.