Chicken Pho, a classic Vietnamese soup, is a perfect recipe for a slow cooker. The chicken and seasonings of star anise, cloves and ginger simmer all day in the crock pot, welcoming you home with an alluring aroma. Serve with the essential garnishes for pho soup—fresh herbs, bean sprouts, chiles and lime—and let everyone top their own. Serve chile-garlic sauce for those who want more heat.