San Antonio Cilantro Leaves Spice and Seasoning Flakes, Medium Cut and Sifted, 4 Ounce Cilantro are the leaves of the herb coriander plant. Cilantro is used for its unique flavor to season tacos, guacamole, curries, soups, stews, salads and more. Cilantro leaf, along with the dried seeds known as Coriander spice, are used for cooking in Mediterranean, Latin American, Middle Eastern, African, Chinese and Southeast Asian cuisine. This flavorful herb is also great with tomatoes or tomatillos in Mexican dishes. To rehydrate: 3-5 minutes in boiling water, 1-2 hours in cold water.