Mine is even easier:
Peel and dice 2 potatoes
1/4 t of celery seed
1 small onion - thinly sliced
cook until potatoes and onions are done
Drain some of the water, add 1 cup Half and Half (or whole milk) and 1 stick of butter, 2 cans of clams and juice.
Cook on low heat for about 20 minutes, stirring to keep it from sticking
My family loves it. OR even easier - find a GFS (Gordon Food Supply) and get their frozen clam chowder. Add milk and extra clams and 1 stick of butter. MMMMMMM - good.