Combine 3/4 cup whole milk with 1/4 cup melted unsalted butter
Whisk until fully blended and smooth
Chill before using
Use immediately for best results
For a lighter substitute, mix 2/3 cup whole milk with 1/3 cup melted butter
For a thicker substitute, blend 1 cup whole milk with 2 tablespoons cornstarch and 2 tablespoons melted butter