In 5-quart saucepot, heat olive oil over medium-high heat and cook onion, stirring occasionally, 3 minutes. Add garlic and cook 30 seconds. Stir in wine and broth and bring to a boil over high heat. Add clams. Cover and cook 3 minutes or until clams open. Remove open clams to serving bowl; set aside. (Discard any unopened clams.)