- Combine butter, garlic, onion and celery in a saucepan.
- Braise over medium-low heat until tender but not brown.
- Add the flour, and mix to make a roux.
- Drain clams, reserving juice.
- In a separate saucepan, combine clam juice, half-and-half, thyme and salt.
- Heat until just below boiling.
- Add to roux, and cook until sauce thickens.
- Add clams, stirring gently to mix through out the sauce.
- Serve over noodles.