Prepare the meat

• Allow the meat to marinate in the refrigerator for a period ranging from 4 to 7 days.
• In a dutch oven, combine the vegetables and herbs. Add garlic, juniper berries, whole cloves, bay leaves, salt, sugar, and peppercorns. Pour in the red wine, red wine vinegar, and water.
• Bring the mixture to a boil, then reduce the heat, cover, and simmer for 10 minutes. Remove the pot from the heat and allow the mixture to cool down completely before adding the beef.
• Once the pot has cooled down completely, place the beef into the mixture, ensuring that it is fully submerged. If the liquid doesn't cover the beef entirely, remember to turn the meat once a day during the marination period. Allow the beef to marinate in the refrigerator for a minimum of 4 to 7 days, though longer marination, up to 14 days as per traditional methods, is highly recommended for enhanced flavors.
• After the marination period, take the meat out of the pot and gently pat it dry. Remember to set aside the marination as you will need it later for the sauce.
• In the pot, heat 2 tablespoons of oil. Increase the heat to high and brown the roast on all sides. Once browned, remove the roast from the pot and set it aside. If you are using bacon as the source of fat, cook it until it is done.
• Add the strained vegetables to the pot and cook them for 5 to 7 minutes. Stir in the flour, allowing the mixture to cook for approximately 2 minutes to eliminate the raw flour taste. Pour in the strained liquid from the vegetable marinade, bring it to a boil while stirring constantly to prevent lumps from forming. Place the roast back into the pot, bring it to a boil, then reduce the heat to low, cover, and simmer for about 2 hours or until the meat becomes tender. Once the roast is cooked, carefully remove it from the pot and transfer it to a plate. Tent the roast to keep it warm, and let it rest for 5 minutes before slicing.
• While the roast is resting, strain the gravy from the pot and return it to the pot. Taste the gravy and adjust the seasoning by adding more sugar, salt, and pepper according to your preference. If you desire a thicker sauce, create a cornstarch slurry to thicken it.
• Pour the gravy over the sliced Sauerbraten and serve it promptly.