⭐ Sour Cream (Best Nut-Free Option)
1:1 (1 cup sour cream per 1 cup Greek yogurt)Sour cream is a fermented dairy product like Greek yogurt, with comparable acidity and fat content, which helps activate baking soda and tenderize gluten. This ensures cupcakes remain moist and rise well.
For best results, use full-fat sour cream and gently fold it into the batter to avoid overmixing. Watch the batter consistency; it should be thick but pourable.
Cupcakes made with sour cream will have a slightly tangier flavor but otherwise very similar texture and crumb to those made with Greek yogurt.