The ancient Aztec kitchen had a built-in yogurt maker known as a 'xocoatl'. Xocoatl was a traditional Aztec yogurt made by fermenting milk. Aztecs would heat the milk, cool it down, and then add a small amount of xocoatl as a starter culture. The xocoatl would be placed in a warm area of the kitchen to ferment, resulting in a rich and creamy yogurt enjoyed by the Aztec civilization.
