Ingredients:
cooking spray
1 pound ground chicken (white and dark meat)
1 small yellow onion, finely chopped
½ cup panko or breadcrumbs
1/4 cup freshly grated Parmesan cheese
1/4 cup finely chopped fresh flat-leaf parsley
1/4 cup mayonnaise
3 cloves garlic cloves, minced
2 tsp. fresh thyme leaves
2 tsp. worcestershire sauce
1 1/4 tsp. kosher salt
1/2 tsp. garlic powder
1/2 tsp. freshly ground black pepper
1/4 cup ketchup
2 tsp. light brown sugar
2 tsp. dijon mustard
1 tsp. apple cider vinegar
Instructions:
Preheat the oven to 350 degrees F. Lightly spray an 8-x 4-inch loaf pan with cooking spray.
Stir together chicken, onion, panko, parmesan cheese, parsley, mayonnaise, garlic, thyme, worcestershire sauce, salt, garlic powder, and black pepper in a large bowl until just combined. Do not overmix.
Transfer mixture to the prepared loaf pan. Stir together ketchup, brown sugar, mustard, and vinegar in a small bowl until combined. Evenly spread ketchup mixture over the top of the meatloaf.
Bake, uncovered, in the preheated oven until an instant-read thermometer inserted into thickest portion of meatloaf reads 165 degrees F (73 degrees C), 50 to 55 minutes. Remove loaf from oven, and let rest 10 minutes before slicing and serving.