The Entertaining Diva
– 1 16-oz package of elbow macaroni or any other small pasta – 4 tablespoons (or ½ a stick) unsalted butter – 1 small onion finely chopped (about 1/4 cup) – 3 tablespoons all-purpose flour – 1½ cups chicken broth – 1½ cups milk or half-and-half – 4 drops Tabasco sauce – 2 lbs sharp cheddar cheese (about 6 cups finely shredded cheese)