Using a box grater, grate 1/2 an onion using the largest holes. Strain to remove excess water.
In a large bowl add ground turkey, grated onion, barbecue sauce, Worcestershire, and poultry seasoning. Mix gently with hands.
Section off the ground turkey into four even sections and using hands, gently form the ground turkey into patties. Place each burger onto a large plate or small backing sheet lined with parchment paper about 1/2 inch thick. Place into the refrigerator for 30 minutes.
For the Grilled Turkey Burger
Prepare grill for two zone cooking and target 450 Fahrenheit degrees over direct heat while the patties sit in the fridge to set.
When the grill is temperature, remove the burgers from the fridge and place over the direct heat. Grill over direct heat for six minutes with lid closed and then flip. Grill for an additional 6 minutes with lid closed or until the internal temperature of the burger is 165 degrees F using an instant read thermometer.
Chipotle Mayo
Combine all ingredients together and stir. Adjust flavors to personal taste. Can be made in advance. If too spicy for your taste feel free to add a touch of honey.
Making the Burgers
Make your burger with your favorite toppings and put a dollop of the chipotle mayo on top of the trimmings before capping with the bun.
Notes
Optional: Grill the bun over direct heat for 1 minute, brioche buns grill fastOptional Grilled Bacon: If wanting bacon - then place bacon on the indirect side of the grill while you start it up. As the grill comes up to temperature and as you grill the burgers, the bacon should be done and crispy. Avoid bacon over direct heat as that will cause major flare ups.Cool those raw burgers. The burger mix will be pasty. By placing them in the fridge for 30 minutes, they will set enough to grill easily and not fall through or stick to the grates.