II
The Method
1
Place the live clams in a wide pot with 120 ml of water. Cover and steam over high heat until the shells open, 6–10 minutes. Discard any that remain shut. Remove the clam meat from the shells and chop it coarsely. Strain all accumulated liquid through a double layer of cheesecloth into a bowl; reserve this clam liquor. The liquor should be clear, briny, and free of grit.
2
In a heavy-bottomed pot over medium heat, render the salt pork dice until the fat runs and the pieces are golden and crisp. This is where the dish's backbone forms: the rendered fat carries the clam flavour through every element, and the scrunchions provide textural contrast. Remove the crisped pork pieces with a slotted spoon and set aside. The fat remaining in the pot should be clear and plentiful.
3
Add the diced onion to the pork fat in the pot. Sweat over medium-low heat, stirring occasionally, until the onion is fully softened and translucent but carries no colour. The onion should offer no resistance when pressed against the side of the pot.
4
Add the diced potato to the pot. Pour in the reserved clam liquor, adding enough water or bottled clam juice to just cover the potato — approximately 500 ml total liquid. Bring to a gentle simmer and cook until the potato is completely tender and beginning to release its starch into the liquid, 15–20 minutes. The broth will have thickened perceptibly and will coat a spoon lightly. This is the dish's sole thickener; no flour is added at any point.
5
This is where the chowder lives or dies. Add the milk and cream to the pot. Heat gently over low heat, stirring, until the chowder is steaming and fully heated through. It must not boil: once the dairy is in, a rolling boil will break the milk proteins and the chowder will curdle and turn grainy. The surface should tremble — not heave.
6
Add the chopped clam meat. Stir to distribute and heat through for 2–3 minutes only — prolonged cooking toughens clam. Taste: the chowder must taste first of clam, briny and sweet, with the cream providing richness in the background. Adjust salt with care, as the clam liquor and salt pork are already saline.
7
Remove from heat. Stir in the butter until it melts and gives the surface a faint golden sheen. Ladle into warmed bowls. Scatter the reserved salt pork scrunchions over each portion. Grind black pepper on top. Serve immediately with oyster crackers alongside.