Preheat the oven to 425 degrees F. Cut the garlic into several pieces, make small cuts here and there into the roast and stuff the garlic pieces in.
Sprinkle the meat with black pepper and slather all over with the mustard. Place the roast in a cast iron skillet, or any oven-safe pan, and transfer to the oven.
Roast for 15 minutes in the preheated oven. Reduce the temperature to the 375 degrees F and cook until the meat registers 130-135 degrees F on a meat thermometer for medium-rare, about 40 minutes longer. For medium, cook to 145F. Keep in mind the temperature will continue to rise by a few degrees after taking it out of the oven, so it's fine to take it out up to 5 degrees under the desired temperature.
Remove from the oven and let rest for at least 15 minutes, tented loosely with foil. Remove the garlic cloves and string. Slice thinly.
Gravy
Place the pan with the drippings over medium heat and add 1 tablespoon of butter.
Once the butter has melted, sprinkle in the flour and whisk continuously for 1 or 2 minutes. Deglaze the pan with the wine, whisking constantly. Let the wine reduce by half.
Whisk in the beef broth and let the gravy simmer until slightly thickened, about 4-5 minutes. Season with salt and pepper to taste.
Video
Notes
*Top round roast is also known as "inside round". Other good options are eye of round and bottom round.Storage InstructionsThe leftover roast beef can be refrigerated for up to 3 days or frozen for up to 3 months. To refrigerate the beef roast, simply wrap it tightly in plastic wrap or aluminum foil and store in an airtight container. To freeze it, wrap it tightly in plastic wrap and then place it in a freezer bag.When you want to reheat it, preheat your oven to 325 degrees. Place the top round roast beef in a baking dish and cover it with aluminum foil. Then, bake for 20-30 minutes in the preheated oven, or until the beef roast is heated through.