(1): You can typically find Allegro Hickory Smoke Marinade in most grocery stores. But if you can't find it, you can use Worcestershire sauce instead. (2) The best meatloaf starts out with freshest hamburger meat, and preferably ground chuck. (3) For extra sauce: Make a double batch of the meatloaf topping and spread ½ of it onto the meatloaf before cooking, and spread the other half on top of the meatloaf after baking. (4) Meatloaf will stay fresh for up to 3 days in the refrigerator when stored in airtight containers.