I. If using the larger, tougher chowder-sized quahog clams, chop the meat finely before adding.
Scrub:
Place the clams in a large soup pot and add:
Cover and steam over high heat until the clams open, 5 to 10 minutes. Transfer the clams to a bowl, discarding any that do not open (reserve the cooking liquid). Remove the clams from their shells, holding them over the bowl to catch any juices. Coarsely chop the clams and set aside. Line a fine-mesh sieve with several layers of cheesecloth and strain the cooking liquid from the pot and any juices from the bowl into a measuring cup. You should have about 4 cups; if there is less, add:
Add to a soup pot over medium heat:
Cook, stirring occasionally, until browned and crisp. Using a slotted spoon, transfer the pork to paper towels to drain. Add to the pot:
Cook, stirring, until the onion is translucent, about 5 minutes. Add and stir until blended and lightly browned:
Add the reserved cooking liquid and:
Bring to a boil, reduce the heat, and simmer until the potatoes are tender, about 15 minutes. Remove the bay leaf. Stir in the chopped clams and reserved pork along with:
Simmer for 5 minutes; do not boil. Season with:
Serve with:
II. For a quicker (and more economical) preparation, use canned clams. Proceed as for version I, omitting the clams and beginning with cooking the pork. Proceed as directed, and add along with the potatoes:
Stir in with the cream:
Heat through, season as directed, and serve.