| 1 pound fresh asparagus
1 to 1 1/2 pounds lean beef steak, sliced in thin strips
1 tablespoon oil
2 large sweet onions
1 teaspoon cornstarch
1/4 cup sherry wine
3 tablespoons light soy sauce
1/2 teaspoon sugar
dash of hot pepper sauce, cayenne, or chili paste, optional
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