โญ Whole Milk and Cornstarch (Best Fat-Free Option)
1/4 cup whole milk + 1 teaspoon cornstarch per 1/4 cup heavy creamCornstarch acts as a thickening agent, increasing the viscosity of whole milk to better mimic the texture of heavy cream. The starch helps stabilize the egg mixture and prevents it from becoming too watery.
Mix the cornstarch with the milk thoroughly before adding to the eggs to avoid lumps. Heat gently if possible to activate the thickening power before combining with eggs.
While this substitute adds some body, it lacks the fat content of heavy cream, resulting in a slightly less rich and tender frittata, but still acceptable in texture and flavor.