That depends on the recipe - there's not a standard conversion that works for everything. Recipes that are pretty much based around their high fat content (shortbread, any form of pastry, Victoria sponge etc...) you should not substitute apple sauce for any of the fat (it gives an odd result).
For other recipes, such as American style muffins and some chunky cookie recipes, you can substitute upto 1/3 of the fat with apple sauce (in doing this, you may need to reduce the amount of other liquids in the recipe, or you'll end up with a sloppy mess). Substituting apple sauce for all the fat in a recipe always gives an odd result; you still need to keep some of the fat in there. Alternatively, use recipes specifically designed for use with apple sauce - Harry Eastwood's (Red Velvet Chocolate Heartache) cookbook is dairy free and wheat free, relying upon fruit purees to give a moist result.
For those who wish to reduce the fat content of the finished product, replacing oil with applesauce will cut calories and fat without adversely affecting the texture. If you are substituting applesauce for shortening, you use half the amount of applesauce. So, 1/2 cup shortening is replaced with 1/4 cup applesauce.
applesauce
shortening is like butter 1 cup of shortening is equal to 1 cup of butter
no
I have tried this, and it worked fine for me. I have used both nonfat and lowfat plain yogurts in cookie and quick bread recipes. The yogurt seems to keep the baked goods moist, the same as using applesauce would. Sometimes I use both applesauce and yogurt to equal the amount of fat called for and it always comes out just fine.
Thinking because of the oil in it.It is easier to get the things out of the pan or whatever.Better if you use applesauce then oil more healthier!Duhh!! Can't use applesauce instead of butter to grease a pan.Just saying I no it's common sense but hey!(Same measurement as the oil)Everyone Knows that!=)
It is in the taste and that is entirely up to you
Make the pastry using shortening, instead of lard.
For most cookies you can't use oil in place of shortening.
LARD
Butter/margarine.
one to one, 1/2 cup of applesauce is equal to 1/2 cup of oil.