Low Calorie Cake Mix What Is A Healthy Substitute For Butter And Fatty Ingridients In Cookies And Frosting Recipes?

What is a healthy substitute for butter and fatty ingridients in cookies and frosting recipes? - low calorie cake mix

I like eating meringue and pastry / mass. But what can I substitute butter or other fattening ingredients like oil on my cake / healthy weight, and low in fat and calories? REVENUE well