If using Asiago, choose a mild supermarket cheese that yields to pressure when pressed. Aged Asiago that is as firm as Parmesan is too sharp and piquant for this bread. If, when testing the bread for doneness, the toothpick comes out with what looks like uncooked batter clinging to it, try again in a different--but still central--spot; if the toothpick hits a pocket of cheese, it may give a false reading. The texture of the bread improves as it cools, so resist the urge to slice the loaf while it is piping hot. Leftover cheese bread is excellent toasted; toast slices in a toaster oven or on a baking sheet in a 425-degree oven for 5 to 10 minutes, not in a conventional toaster, where bits of cheese may melt, burn, and make a mess.