When substituting applesauce for oil in baking, use a 1 to 1 ratio of applesauce to oil. For example, if the recipe calls for 1/2 cup oil, use 1/2 cup applesauce.
Substituting applesauce for butter or margarine when baking changes the consistency. Quick breads, muffins and other moist, cake-like baked goods are the best suited recipes for substituting applesauce for oil. Unlike cookies, which need butter for flavor and texture, these baked goods can be made effectively using applesauce without much sacrifice in taste. Baking with applesauce adds moisture, while cutting fat and calories. Baked goods with applesauce may be slightly moister and denser than the original recipes with oil.