⭐ Sour Milk (Buttermilk) (Best Fat-Free Option)
3/4 cup sour milk + 1/4 cup heavy cream per 1 cup sour cream Quick tip: Combining sour milk with heavy cream approximates the fat and acidity of sour cream but results in a thinner batter.
Sour milk or buttermilk provides the necessary acidity, but its low fat content requires supplementation with heavy cream to mimic sour cream's richness. This combination helps maintain the tang and moisture balance needed for cheesecake.
Mix thoroughly and be aware that the batter may be slightly thinner, which can affect baking time and texture. Adjust baking times accordingly and monitor for set.
The cheesecake will have a tangy flavor similar to sour cream but may be less dense and creamy, with a lighter mouthfeel.