72811912_ications___University_of_Maine__Recipe_Substitutions
[0] 1 cup butter or margarine [Recipe Substitutions] 
1/2 cup margarine plus 1/4 cup prune puree. (For some baked foods, you can substitute applesauce, plain yogurt, or prune butter or puree for equal amounts of fat. Try it out to see what works).
Bulletin #4331, Ideas for Planning Thrifty Menus | Cooperative Extension Publications | University of Maine
Recipe Substitutions