Add all turkey meatloaf ingredients (except BBQ rub and olive oil) to a large bowl. Mix thoroughly by hand, but don't over mix. The mixture will seem pretty wet, place it in the refrigerator for 2 hours and it will be easier to work with.
Preheat the oven or grill to 425°F, ensuring there is a rack in the middle position of the oven. While the oven is preheating, add the sauce ingredients to a saucepan, and place over medium low heat. Whisk occasionally till well incorporated. Once the sauce is teaming, reduce heat low and allow it to stay warm.
Remove the turkey meatloaf mixture from the refrigerator. Using a raised edge cookie sheet, lined with parchment paper, form the mixture into two equal sized loaves.
Lightly coat the loaves with olive oil, and season with optional BBQ rub. Place the sheet in the oven, close the door and reduce temperature to 350°F. Bake for 35 minutes and check the internal temperature with an instant read thermometer. Remove the loaves from the oven when the internal temperature reaches 150°F.
Glaze the top of the loaves with the sauce, turn off the oven and return them to the warm oven for ten minutes.
Remove the loaves from the oven, and allow them to rest for five minutes before slicing and serving with mashed potatoes or your favorite side.