-cup sour cream
Rich in fat-soluble vitamins (A, D, E, K) and provides probiotic cultures from fermentation that support digestive health. Contains significant saturated fat and is calorie-dense, with approximately 60 calories and 6 grams of fat per tablespoon.
About
Sour cream is a fermented dairy product made from regular cream (the fat-rich layer skimmed from milk) that has been treated with lactic acid bacteria cultures, most commonly Lactobacillus lactis. This acidification process causes the cream to thicken and develop a characteristically tangy flavor. The fermentation typically occurs at controlled temperatures and results in a smooth, spoonable product with a fat content usually ranging from 18-20% in standard sour cream, though variations exist (reduced-fat versions contain 10-12% fat). The flavor is distinctly sour and slightly buttery, with a creamy mouthfeel.
Culinary Uses
Sour cream functions as both a cooking ingredient and a condiment across numerous culinary traditions. In baking, it adds moisture, tenderness, and tang to cakes, quick breads, and cookies due to its acid content and fat. In savory cooking, it serves as a finishing element for soups (particularly Eastern European borscht and Polish żurek), a topping for baked potatoes and Mexican dishes, and a base for creamy sauces and dressings. It is central to Central European and Russian cuisines, appearing in stroganoff, pierogi fillings, and cold soups. Sour cream also acts as a leavening agent when combined with baking soda in baked goods.