Legal Hot sauce is made from a special recipe passed down by generations and now for the first time is available in The United States. The Malagueta pepper grows in Brazil and is the key ingredient in Legal Hot sauce . Legend has it that the Malagueta pepper was discovered by the Portuguese upon exploring South America in what is now Brazil. The mystical plant has been used for thousands of years by the natives for food and medicinal purposes. It was instrumental in the discovery of gold in Brazil, wherever explorers found the malagueta growing.