⭐ Sour Cream (Best Nut-Free Option)
1:1 (1 cup sour cream per 1 cup Greek yogurt)Sour cream contains lactic acid and a creamy texture similar to Greek yogurt, which helps break down proteins in meat, making it tender. The acidity also balances the marinade's flavors.
For best results, use full-fat sour cream to match the richness of Greek yogurt and whisk it well to ensure even coating. Avoid sour cream with additives or stabilizers that might alter texture.
The final dish will have a slightly richer taste but very close in texture and tang, making sour cream a nearly seamless substitute in marinades.