Preparation Heat oven to 350°F. Combine all ingredients in large bowl; mix lightly but thoroughly. Bake 50 to 55 minutes or until meatloaf is to medium doneness (160°F for beef, 170°F for turkey), until not pink in center and juices show no pink color. Let stand 5 minutes before slicing. As good as the meatloaf is, it would not be complete without the sauce. Mom formed the mixture into a loaf and placed it in the middle of a roast pan to cook. Twenty minutes before it was done, the grease/liquid was drained off. She then covered the meatloaf with 1/2 cup of grated onion, followed by 1 cup of (Heinz) ketchup mixed with 4T of brown sugar, 4T vinegar, 2T Worchestershire Sauce; heated mixed ingredients but did not boil. I always make a double batch to spoon over each piece. Cover and refrigerate leftovers promptly and use within 2 days, or wrap airtight and freeze up to 3 months.