Ingredients:

• 6 thin slices beef round or thin flank steak (about 1 1/2 pounds)
• 3 medium dill pickle spears
• 6 slices bacon
• 1 small white onion, thinly sliced
• 3 tablespoons German mustard, such as Löwensenf (a good substitute is Dijon mustard)
• Kosher salt
• Freshly ground black pepper
• 2 tablespoons vegetable oil or clarified butter
• 1 medium white onion, thinly sliced
• 2 carrots, peeled and roughly chopped
• 1 tablespoon tomato paste
• 1 tablespoon flour
• 1 1/2 cups red wine
• 1 1/2 cups beef stock
• 1 tablespoon unsalted butter
• 1 tablespoon pickle brine (optional)