1. Mix barbecue sauce, ketchup and water in large bowl until blended. Add meatballs; mix lightly. Transfer to full hotel pan (or to half hotel pan for Trial Recipe); cover.
2. Bake in 350ºF standard oven 35 to 40 min. or until meatballs are done (165ºF).
3. Meanwhile, bring broth and milk in large saucepan (or in medium saucepan for Trial Recipe) just to simmer on medium heat. Slowly whisk in cornmeal until well blended; cook until slightly thickened, stirring constantly. Reduce heat to low; simmer 25 min. or until done, stirring occasionally. Remove from heat. Add butter and cheese; stir until melted.
4. Spoon grits into 12 serving bowls (or into 6 bowls for Trial Recipe). Top each serving with 3 meatballs.