Serve this classic chowder with oyster crackers and as much hot sauce as you desire.
Combine first 5 ingredients in a large saucepan over medium-high heat; bring to a boil. Cover and simmer 10 minutes or until potato is tender.
Add clams, and return mixture to a boil, stirring occasionally. Remove from heat, and let stand 20 minutes.
Stir in cream and butter. Cook over low heat, stirring constantly, until thoroughly heated.
Woodman's of Essex, Essex, Massachusetts