In a large airtight plastic bag or a shallow marinating dish, whisk together the 1/3 cup dark brown sugar, 1/4 cup ketchup, 1/4 cup red wine vinegar, 1/4 cup vegetable oil, ¼ cup water, 1 tablespoon Worcestershire sauce, 1 tablespoon garlic powder, 1 tablespoon onion powder, 2 teaspoons coarse kosher salt and 1 teaspoon ground black pepper. Add the 2 pounds steak tips, tossing to coat. Marinate for 1-8 hours.
Remove the steak tips from the marinade and discard excess marinade.
Heat the 2 tablespoons vegetable oil over medium-high heat in a large skillet, working in 2-3 batches (depending on the size of your skillet), cook for 3-4 minutes, tossing until all sides are brown for medium rare bites. For more well done, cook an additional 2 minutes for each degree of doneness.
Serve over 12 ounces buttered egg noodles and garnish with chopped 2 tablespoons flat parsley, if desired.
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