"Create a modified BBQ sauce recipe that fits these restrictions: gluten-free, dairy-free, nut-free, shellfish-free, soy-free, sesame-free, and corn-free. Use the following sauce as inspiration: olive oil, garlic, ketchup, water, molasses, dark brown sugar, apple cider vinegar, Worcestershire sauce, bay leaf, mustard powder, chili powder, onion powder, salt and pepper. Replace any restricted ingredients with safe alternatives while keeping a similar flavor profile. Then incorporate that sauce into the existing BBQ chicken buns recipe for 3 people. Use imperial units only. Keep it beginner-friendly, quick, and minimal processing. Include the sauce ingredients and steps, and make sure the final recipe remains suitable for gluten-free buns."