Ingredients 1 large can of clammed chowder. 1 5 oz can of clams. 1/4 cup milk or cream. 1 tbsp olive oil or butter (if using stove-top version) 1 rib of celery - chopped. 1/4 onion - chopped. 2 slices precooked bacon - chopped. Old Bay Seasoning/fresh parsley. 21 Jan 2015