The differences between sour cream and crema or creme fraîche are subtle but fascinating. Mexican crema, although it is thinner and more liquid, has a higher fat content than sour cream.

Another great way to elevate sour cream is by turning it into a crema, which is a Mexican alternative to sour cream. Mix ...

Season with salt to taste and set aside. Make avocado crema: Slice remaining scallions and add to blender with mayonnaise, sour cream, peeled avocado, remaining cilantro, jalapeño and garlic.