The sweet onion is a variety of onion native to Spain, known for its mild flavor and crispy texture. It is rich in vitamins A, B1, C, and E, as well as minerals and folic acid, making it a nutritious and versatile food. This onion is harvested at different times of the year, with white ones being harvested in late spring and colored ones in late summer. Its properties include tonic, diuretic, and digestive effects, and it is an excellent remedy for cough when its juice is mixed with lemon and honey. To store sweet onions correctly, it is recommended to keep them in a cool, dry, and dark place, avoiding the fridge to preserve their properties. It is often suggested that to minimize eye irritation when cutting, they can be placed in the freezer for 10 minutes before use. Whether in salads, stews, or sauces, this onion always enhances the flavor of Mediterranean dishes.