Start by preheating your oven to 350 degrees Fahrenheit so it is fully up to temperature when you are ready to bake. Take a large baking sheet and spray it lightly with cooking oil to prevent any sticking later. This simple prep step ensures a smooth cooking process and easy cleanup once dinner is done.
Grab a large mixing bowl and add the ground turkey, grated onion, garlic, breadcrumbs, fresh parsley, and all the spices. Use your hands or a sturdy spoon to mix everything together until just combined, being careful not to overwork the meat. You want the spices distributed evenly without compressing the turkey mixture too much.
Use a medium cookie scoop to portion out about two tablespoons of the turkey mixture for each individual meatball. Roll the portion gently between the palms of your hands to form a smooth, round ball and place it on the sheet. Repeat this process until all the meat is used, spacing them out slightly on the baking tray.
Slide the baking sheet into your preheated oven and let the meatballs bake for approximately 15 minutes. They should be just cooked through and firm to the touch, losing their raw pink color. This initial bake sets the shape and cooks the protein before the sticky glaze is applied.
While the meatballs are baking, whisk the honey and apple cider vinegar together in a small bowl until smooth. Remove the tray from the oven and quickly brush this sweet mixture over the top of each meatball. Return the tray to the oven for two more minutes to let the glaze set and become sticky.