Drain clams and reserve liquid. Add enough water to reserved liquid to make 3 cups of stock.
Step 2
In a large saucepan pour clam juice and water mixture, undrained tomatoes, onions, potatoes, carrots, salt, pepper and thyme. Cover and simmer for 30 to 35 minutes.
Step 3
Remove the pan from the heat. Mash the vegetables slightly to thicken the broth. Add clams to the saucepan and heat thoroughly. Serve hot.