01 -
Preheat your oven to 220°C (425°F). Line a baking sheet with parchment paper or lightly grease a baking dish to ensure non-stick cooking.
02 -
Pat the chicken breasts thoroughly dry with paper towels. If any chicken breast measures thicker than 2.5 cm (1 inch), gently pound it to a uniform thickness of approximately 1.9 cm (3/4 inch) to promote even cooking.
03 -
In a medium-sized mixing bowl, combine the mayonnaise, grated Parmesan cheese, garlic powder, onion powder, dried Italian seasoning, salt, and freshly ground black pepper. Whisk all ingredients until thoroughly incorporated and the mixture is smooth.
04 -
Arrange the prepared chicken breasts on the lined baking sheet. Evenly spread a generous, thick layer of the mayonnaise-Parmesan mixture over the top surface of each chicken breast.
05 -
If utilizing seasoned breadcrumbs, sprinkle them uniformly over the coated chicken, gently pressing them down to ensure proper adherence to the mayonnaise-Parmesan layer.
06 -
Bake in the preheated oven for 20 to 25 minutes, or until the internal temperature of the thickest part of the chicken reaches 74°C (165°F) and the coating is golden brown and visibly bubbly.
07 -
Allow the chicken to rest for 5 minutes after baking to retain juices before slicing or serving. Garnish with fresh chopped parsley, if desired, prior to serving.