⭐ Sour Cream (Best Gluten-Free Option)
1:1 (replace Greek yogurt with equal volume of sour cream)Sour cream works well because it has a comparable fat content and acidity level to Greek yogurt, which helps activate the baking soda and maintain the cake’s rise and tender crumb. The creamy texture ensures the batter remains thick enough to hold air and structure.
For best results, use full-fat sour cream and avoid low-fat versions as they can alter moisture and texture. Mix gently to avoid overworking the batter, which can toughen the cake.
The final cake will have a very similar moistness, crumb structure, and tangy flavor, making sour cream the most reliable substitute for Greek yogurt in Red Velvet Cake.