Chupe de mariscos is a traditional and Chilean seafood chowder that includes ingredients like shrimp, mussels, clams, squid, and sometimes fish. The choice and variety of seafood can vary based on availability and regional preferences. The broth is typically made from fish stock or the cooking liquid from the seafood.
It's thickened with rice, while other common ingredients include potatoes, choclo, onions, garlic, tomatoes, and peas. What sets this dish apart from other soups is the addition of dairy. Evaporated milk or fresh milk is often added to give the soup a creamy consistency, and some versions might also have a touch of cheese, which is melted into the soup.
Aji peppers, typically aji amarillo (a yellow chili pepper), give the chowder its characteristic color and a hint of heat. The soup is also seasoned with salt, pepper, cumin, and fresh herbs like coriander or parsley. Towards the end of the cooking process, eggs are usually cracked into the simmering soup, where they poach in the hot liquid.