Avocado can be used as a substitute for butter in your next baking adventure, but one simple step is key to getting the most ...

A piecrust made with butter or margarine won't be as flaky as one made with shortening because of the water. If you're a fan of flaky, you may not want to substitute butter for shortening in piecrust.

How to Substitute Butter for Shortening Substitute butter for shortening at a 1:1 ratio. So if your recipe needs a cup of shortening, use a cup of butter.