Below is the recipe for the Mouse House, which is made for the Children's Zoo in one of the San Diego Zoo's restaurants. (Warning: this recipe makes a BIG house!) <p>1 quart water <p>1 cake fresh yeast <p>4 pounds wheat flour <p>4 ounces sugar (1/2 cup) <p>1 ounce salt (1/8 cup) <p>5 ounces vegetable shortening (2/3 cup) <p>Mix the ingredients well to make a dough. Let the dough sit for awhile to rise, until it's puffing up toward the top of the bowl. Then punch it down by kneading it some with your hands. Leave it to rise up one more time. Put the risen dough into a large, greased square pan. Bake for 15 minutes at 425 degrees Fahrenheit, then reduce the oven heat to 325 degrees and bake for another hour. You can make a smaller loaf by reducing the amount of each of the ingredients by one-fourth.