⭐ Sour Cream (Best Nut-Free Option)
1 cup sour cream per 1 cup Greek yogurtSour cream has a similar fat content and tanginess as Greek yogurt, which helps replicate the creamy mouthfeel and acidity that balance curry spices. The lactic acid in sour cream also aids in tenderizing ingredients and enhancing flavor complexity.
To avoid curdling, temper sour cream by mixing it with a small amount of hot curry sauce before adding it fully. Add it off the heat or on low heat to maintain smoothness.
The final curry will be slightly richer and less tart than with Greek yogurt but will maintain a creamy, balanced flavor profile suitable for most curry dishes.