Sour Cream (Best Option)
1 tablespoon per 2 eggsSour cream is a fermented dairy product like Greek yogurt, so it shares the tangy flavor and thick consistency that helps tenderize the eggs and create a creamy mouthfeel. The acidity in sour cream also slightly breaks down egg proteins, contributing to softness.
When using sour cream, whisk it thoroughly with the eggs to ensure even distribution. Avoid overheating to prevent curdling, as sour cream can separate if cooked at too high a temperature.
Compared to Greek yogurt, sour cream yields scrambled eggs that are slightly richer and less tart, but overall very close in texture and flavor, making it the best direct substitute.