Hibiscus flowers are commonly used in Mexico to make a cold, sweetened beverage or to brew a relaxing tea that can also be used to treat hipertension (high blood pressure). The flowers are usually discarded after brewing, but they can be used as a meat substitute in a number of dishes. I have also discovered in the process that I can get a lot more beverage from a batch of flowers than I thought. The chewy texture resembles that of shredded beef or pork, and they absorb the flavors of garlic and onion when sauteed. If you don’t live in Mexico, you may be able to find hibiscus in a supermarket or Mexican grocery, or you can order it on Amazon. These tacos got a hearty thumbs-up even from the non-vegans at my house in Cancún.