Sweet And Sour Steak
["2 lb. steak (2/3 or 3/4-inch thick)", "1 Tbsp. oil", "1 tsp. salt", "1/8 tsp. pepper", "1/8 tsp. dry mustard", "2 tsp. minced onion", "1/2 c. water", "3 Tbsp. vinegar", "11 oz. can mandarin orange sections", "1 small can pineapple chunks (reserving 3 Tbsp. liquid)", "3 Tbsp. brown sugar", "1 Tbsp. cornstarch"]
["Brown steak on both sides in oil in frying pan.", "Combine salt, pepper, dry mustard, minced onion, water and vinegar and pour over steak.", "Cover tightly and cook about 1 1/2 hours over low heat. Drain orange sections and pineapple chunks, reserving 3 tablespoons liquid and blend in brown sugar and cornstarch.", "Put steak on platter to keep warm.", "Put fruit and sugar mixture in pan with drippings and cook 2 or 3 minutes.", "Pour over meat and serve."]
["oil", "salt", "pepper", "dry mustard", "onion", "water", "vinegar", "orange sections", "pineapple", "brown sugar", "cornstarch"]