Pre Heat the oven to 350 degrees. Using medium heat bring your pan to temperature then add the butter and saute your onions and garlic for two minutes before adding them to the ground beef. After two minutes remove your onion and garlic from the pan and set them aside until later

In a small bowl combine your brown sugar mustard and ketchup whisk until well combined and set it aside until later.

To the ground beef, add your paprika, parsley, garlic powder, salt and pepper. Add the Worcestershire sauce, the onion and garlic mixture then mix until well combined. Add the half and half, egg and bread crumbs and mix well. Allow your mixture to sit in the refrigerator for 30 minutes before forming a loaf.

After 30 minutes remove it from the refrigerator then form your loaf.

Transfer your loaf to a wire rack then top with the sauce.

Transfer to the preheated oven and allow it to cook for one hour.