⭐ Greek Yogurt (Best Gluten-Free Option)
1:1 (1 cup Greek yogurt per 1 cup sour cream)Greek yogurt contains lactic acid and moisture levels close to sour cream, which supports the sourdough’s natural fermentation and flavor development. The acidity helps balance the yeast activity and enhances the tangy profile of the bread.
For best results, use full-fat Greek yogurt to match the fat content of sour cream and avoid thinning the dough excessively. If the yogurt is too thick, slightly thin with water but keep hydration consistent.
Compared to sour cream, Greek yogurt may produce a slightly tangier bread with a tender crumb, but the difference is minimal and generally favorable for sourdough bread.