⭐ Sour Cream (Best Nut-Free Option)
1:1 (1 cup sour cream per 1 cup Greek yogurt)Sour cream works well because it has a similar fat content and acidity level to Greek yogurt, which helps balance the heat and acidity of chili. The lactic acid bacteria in sour cream provide a tang that complements the spices and tomato base.
For best results, use full-fat sour cream and add it towards the end of cooking or as a topping to preserve its texture and flavor. Avoid boiling sour cream directly as it can curdle.
Compared to Greek yogurt, sour cream may be slightly richer and less protein-dense, but the difference in chili is minimal and generally unnoticeable to most eaters.