Greek Yogurt with Milk (Best Option)
3/4 cup Greek yogurt + 1/4 cup whole milk per 1 cup buttermilkGreek yogurt provides the necessary acidity and thick texture similar to buttermilk, which helps in proper gelatin setting and flavor development in Panna Cotta. Diluting it with milk adjusts the thickness to match buttermilk’s consistency.
For best results, whisk the yogurt and milk thoroughly to avoid lumps and ensure even distribution of acidity. Use whole milk to maintain the fat content that contributes to a creamy mouthfeel.
This substitute yields a Panna Cotta very close in texture and flavor to the original, preserving the signature silky and slightly tangy profile.