Definition
Sour cream is a dairy product made by fermenting regular cream with certain lactic acid bacteria. This process thickens the cream and gives it a tangy, sour flavor. Think of it as the yogurt of the cream world. It's often used as a topping for baked potatoes, tacos, and other dishes. It adds a cool, tangy contrast to rich or spicy foods. It's a versatile condiment and ingredient.