Lupini beans, also known as "tremoços," are a type of legume that are popular in Portuguese cuisine. Lupini beans are native to the Mediterranean region and have been a staple food in Portugal for centuries. They are high in protein and fiber and are often enjoyed as a snack or as an appetizer. Lupini beans are typically sold in jars and are enjoyed as a snack, often with a beer. They are usually soaked in water for several days to soften them and are then seasoned with a variety of spices and flavors, such as salt, vinegar, or lemon juice. In addition to being a popular snack food, lupini beans are also used in a variety of traditional Portuguese dishes, such as "salada de tremoços," a salad made with lupini beans, onions, and parsley. Overall, lupini beans are a unique and important part of Portuguese cuisine, and are enjoyed by locals and visitors alike. Their rich flavor and versatility have made them a staple ingredient in Portuguese cooking for centuries.