


Not necessarily. You have to adjust the amount. For every ounce of butter, put in .80 ounce of shortening and add .20 ounces of liquid.
Butter is not all fat, it is about 80% fat and, 20% other stuff, mostly liquid. So multiply the amount of butter by .80 and that will tell you how much shortening to add in. Then multiply the butter by .20 to find out how much liquid to add back in. That will keep the recipe in balance.
You can try a direct substitution, but if you don't get the same results you will know why. Plus butter flavored shortening does not taste at all like butter. Although Alton Brown and Shirley Corriher swear by it, so go figure. It is all in the personal taste buds.

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