Portuguese sweet bread was a traditional treat in my mother-in-law’s family for generations. Nowadays, you find it in ordinary grocery stores, but not yummy as this version. Thickly sliced, toasted, then spread with real butter is a little bit of heaven. Mace, which is the outer covering of a nutmeg, is the ingredient that gives it a distinctive taste. It is also the dominant spice in old-fashioned plain doughnuts.