Preheat oven to 325?F.
In a large bowl and add meat, onions, bread crumbs, Weber's Original Barbeque Sauce, eggs, ketchup and salt. Mix ingredients until thoroughly blended. Pack into an 8-inch x 4-inch loaf pan and smooth top. Coat top with a thin layer of Weber's Smokey Joe Hickory Barbecue Sauce, reserving the majority of the sauce for basting on the grill.
Place loaf on a cookie sheet to catch any overflow, cook in 325-degrees F oven until thoroughly cooked (center reaches 155-degrees F), about 40 minutes. Remove from heat and let cool. Refrigerate at least two hours or overnight.
Preheat grill to use the indirect/medium method of cooking. (About a 350-degrees F grill with charcoal on each side for a Weber kettle or the middle burner(s) off for a Weber gas grill).
Remove chilled meatloaf from pan and slice crosswise into 1 inch thick slices.
Grill slices directly over heat source for one minute per side. Move slices to the center of grill, indirect heat source, and continue to grill for 2-3 minutes and glaze with Weber's Smokey Joe Hickory Barbecue Sauce.
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