The appeal of such quick breads as cinnamon buns and banana bread is clear. They are quick, sweet, and, well, quick. Of course, just because something is fast doesn't mean you want to eat it. Supermarket cinnamon buns often have an odd, artificial flavor and spongelike texture that no one likes. And just because banana bread starts with over-the-hill bananas doesn't mean it should taste like leftovers.