Dried hibiscus, lime, sugar & cold water — Mexico's ruby-red agua fresca
Hibiscus (known as Jamaica — pronounced ha-MY-ka — in Mexico) arrived in the New World via the slave trade from West Africa, where the same flower makes Bissap in Senegal and Zobo in Nigeria. In Mexico it became the definitive agua fresca, its tartness a perfect counter to fatty, spiced street food.
The longer you steep, the more intensely tart. For a sweeter, fruitier version, add a splash of orange juice. The concentrate (before diluting) can be stored for a week in the fridge. For Agua de Jamaica Picante, add a small dried chile de árbol to the steep.