2 slices bacon, crisply cooked and crumbled In a large heavy saucepan over medium heat, cook onions in 2 tablespoons butter for 5 minutes, or until tender.
Add salt, pepper, broth or water and potatoes; cook until fork tender.
Reduce heat; add scallops and cook just until tender, 4 to 5 minutes.
Stir in clams with reserved liquid, cream, milk, bacon and remaining butter.
Heat through without boiling for 3 minutes, or until hot.