An ancient pre-Hispanic beverage from Oaxaca made with cacao, mamey seed, and toasted corn. This refreshing, dairy-free drink is a healthy, clean eats tradition that has endured for centuries.
Gently toast the corn kernels in a dry skillet over medium heat, stirring constantly, until golden brown and fragrant, about 8-10 minutes.
Peel the cacao beans and lightly toast them for 2-3 minutes over low heat to enhance their aroma; remove from heat and let cool.
Crack open the mamey seeds and remove the inner kernels. Toast these kernels in the skillet over medium-low heat for 4-5 minutes until aromatic.
Combine toasted corn, cacao beans, mamey seed kernels, and almonds in a high-powered blender or traditional stone grinder. Grind with 1 cup of water until a smooth, dense paste forms, scraping down as needed.
Dissolve the piloncillo in 1 cup warm water. Gradually add the paste and remaining water (up to 4 more cups) to a large bowl, mixing vigorously by hand until frothy and well-emulsified. Optionally, add flor de cacao for extra fragrance.
Let the drink rest for 15 minutes to allow flavors to meld and the cacao oils to rise, then serve chilled or over ice, stirring gently before pouring.