Leche de tigre, or "tiger's milk," is a zesty and invigorating Peruvian culinary staple that serves as both a marinade and a sauce, primarily used in the preparation of ceviche. This vibrant concoction is a blend of lime juice, fish stock, onions, cilantro, and chili peppers, often enriched with ginger and garlic, creating a harmonious balance of tangy, spicy, and savory flavors. Revered not only for its role in enhancing the taste of fresh seafood, leche de tigre is also celebrated for its purported invigorating properties, making it a popular choice as a standalone shooter or a revitalizing elixir believed to cure hangovers and boost vitality.