Mac 'n Cheese : Robert Irvine

Ingredients

• 1 (16-ounce) package elbow macaroni
• 1/2 cup butter (1 stick)
• 1 cup chopped white onion
• 1/2 cup all-purpose flour, or as needed
• 1/2 to 1 cup chicken broth, as needed
• 1/2 cup heavy cream
• 2 cups shredded yellow Cheddar
• Salt
• White pepper
• 1/4 cup Cheddar crackers, crushed, with a few left whole for garnish (recommended: Pepperidge Farm Goldfish)