Crema by John Spottiswood.

Cremas are the Hispanic version of sour cream. This category includes crema Mexicana, which is similar to crème fraîche, crema Centroamericana, which is a bit thicker and sweeter than crema Mexicana, crema media, which is like whipping cream, crema Mexicana agria, which is thicker and more acidic than crema Mexicana and often used for savory dishes, and crema Salvadoreña, which is thick like sour cream.