Whole Milk and Butter (Best Option)
3/4 cup whole milk + 1/4 cup melted unsalted butter per 1 cup heavy creamHeavy cream is approximately 36-40% fat, which contributes to the moistness and richness of cupcakes. Combining whole milk (3.25% fat) with melted butter (80% fat) recreates this fat content, ensuring the batter has the necessary fat for proper crumb structure and moisture retention.
To use this substitute effectively, melt the butter and mix it thoroughly with the milk before adding to the batter to ensure even fat distribution. Avoid overheating the butter to prevent cooking the batter prematurely.
Cupcakes made with this substitute will have a texture and flavor very close to those made with heavy cream, with only a slight difference in richness that is generally imperceptible.