New England Fish Chowder
["2 Tbsp. butter", "1 medium onion, chopped", "water (see directions below)", "1 1/2 lb. haddock fillets, cut in half", "1 c. potato, cut up into bite-size pieces", "1/2 tsp. salt", "dash of pepper", "2 c. milk"]
["Cook and stir onions in butter in a 2-quart saucepan until onion is tender (not browned).", "Remove from heat.", "Add haddock, potato, salt and pepper with enough water to cover.", "Cover and cook until potato is tender and fish is flaky (about 15 minutes). Stir in milk and heat."]
["butter", "onion", "water", "haddock", "potato", "salt", "pepper", "milk"]