Sirloin Steaks with Arugula and Balsamic Vinegar Sauce
Season steaks with salt and pepper. Heat peanut oil in a skillet. Add steaks and fry 2 minutes on each side. Remove the pan from heat and let sit for 3 minutes. Return to medium heat and cook for another 8 minutes, turning occasionally.
Rinse arugula and drain. Peel garlic and chop finely. Coarsly chop fennel seeds. Cut chile pepper lengthwise, remove seeds and rinse. Finely chop the chile pepper. Mix vinegar with red wine, tomato paste and beef stock.
Remove steaks from the pan. Add garlic, fennel and chile pepper and sauté briefly in the pan drippings. Stir in vinegar mixture and bring to a boil. Cook for 1-2 minutes while stirring. Season with salt and pepper. Serve steaks with the arugula and sauce.