Stir-Fried Beef
["1/2 c. beef stock or canned broth", "2 Tbsp. soy sauce", "4 tsp. rice wine vinegar", "salt", "1 Tbsp. cornstarch", "2 Tbsp. oil", "3/4 lb. mushrooms, sliced", "1/2 lb. snow peas, trimmed", "1 lb. flank steak, cut into 1/4-inch slices", "2 cloves garlic, minced", "1 Tbsp. fresh ginger, minced", "4 scallions, cut into 1-inch pieces", "8 oz. can sliced water chestnuts"]
["Combine stock, soy sauce, vinegar and 1/2 teaspoon of salt. Mix cornstarch with 1 tablespoon of water.", "In a large frying pan, heat 1 tablespoon of oil.", "Add mushrooms and cook about 3 minutes. Stir in snow peas and cook 1 minute.", "Remove vegetables and any liquid.", "Heat remaining oil; add meat and sear about 3 minutes. Stir in garlic, ginger and stock mixture.", "Bring to a boil.", "Stir in cornstarch.", "Cook briefly to thicken.", "Stir in mushrooms, snow peas, scallions and water chestnuts and serve."]
["beef stock", "soy sauce", "rice wine vinegar", "salt", "cornstarch", "oil", "mushrooms", "snow peas", "flank steak", "garlic", "fresh ginger", "scallions", "water chestnuts"]