Microwave New England Clam Chowder
["2 c. cubed potatoes", "3/4 c. thinly sliced celery", "1 medium onion, chopped", "2 (6 1/2 oz. each) cans minced clams (reserve liquid)", "1 tsp. salt", "1 tsp. dried parsley flakes", "1/4 tsp. dried thyme leaves", "1/4 tsp. pepper", "1 medium carrot, grated", "2 c. milk, divided", "1/4 c. all-purpose flour", "3 Tbsp. butter or margarine"]
["In a 2-quart casserole, combine potatoes, celery, onion, reserved clam liquid, salt, parsley, thyme and pepper.", "Mix well. Cover."]
["potatoes", "celery", "onion", "salt", "parsley flakes", "thyme", "pepper", "carrot", "milk", "all-purpose", "butter"]