Dad'S Beef Stroganoff

• 1 pound beef; use good-quality steak for best results, but ground beef also works
• 2-3 medium yellow onions, diced
• cooking oil or butter
• 1 bell pepper, diced
• 6-8 ounces mushrooms, sliced, or 1 can
• 12 ounces sour cream
• 2 tablespoons worcestershire sauce
• 1 cup cooking wine
• 1 teaspoon ground mustard
• salt and pepper
• 1 tablespoon cornstarch, optional

1. Sear the meat over high heat in a large skillet; brown evenly.
2. Remove meat from skillet, set aside, and reduce heat to medium. Add a few tablespoons butter or oil (to preference) and the onions. Saute for about 4 minutes until translucent.
3. Add the bell pepper and onions and saute a few more minutes until softened.
4. Put the beef back in the skillet. Stir in sour cream and worcestershire sauce. Allow to simmer for about 5 minutes.
5. Stir in the wine and ground mustard. Allow to simmer over very low heat for up to an hour.
6. Salt and pepper to taste. If the sauce is thick, dissolve the cornstarch in water and stir in; if too dry, dilute with water.
7. Serve generously over thick noodles. Also goes well on bread as open-faced sandwiches, or in blini.

beef, yellow onions, cooking oil, bell pepper, mushrooms, sour cream, worcestershire sauce, cooking wine, ground mustard, salt, cornstarch

Taken from food52.com/recipes/6682-dad-s-beef-stroganoff (may not work)