Onions are a fundamental ingredient in Mediterranean cuisine, not only notable for their variety such as white, purple, and yellow onions, but also for their multiple health benefits. Cultivated in Spain, these vegetables provide a rich source of vitamins A, B1, C, and E, as well as minerals and folic acid. Ideally, it is recommended to consume them raw to retain their properties, as they are tonic, diuretic, and digestive. During harvesting, white onions are distinguished by being collected in late spring, while colored varieties are harvested at the end of summer. Additionally, their juice mixed with lemon and hot honey is considered an excellent remedy for relieving coughs and colds. It is important to store them in a cool, dry place away from light, avoiding refrigeration to maintain their freshness and properties. For those looking to avoid irritation while cutting, it is suggested to put them in the freezer for 10 minutes, though the time should not be exceeded as they would lose their aroma and distinctive flavor.