Hi Michelle IGA is just the store brand shortening we get here from the IGA supermarket chain, flavorite brand will work just as well, just make sure that it is all vegetable. I think most supermarket brand with trans fat work well.
Lori-Ann,The Cake Studio Cayman,http://www.facebook.com/pages/The-Cake-Studio-Cayman/136313133106508?ref=tn_tnmn