I'm trying to re-create J.J. Nissen's Spanish Bar Cake that my mother and I used to enjoy so much years ago. I'm going to try the recipe for A&P spanish bar cake but the recipe is made in a 13x9 inch pan. Would this work in a 9x5 loaf pan? And does anyone have a recipe for a white confectioner's sugar type icing to go with it? Thanks!