Pre-heat oven to 400F. Line a baking sheet with foil or parchment paper and set aside.
In a food processor place the chicken breasts, 1/4 cup parmesan cheese, cold water, and salt +pepper. Pulse for 1 minute or just until the chicken is minced and everything is well combined.
Pour the panko breadcrumbs and 1/4 cup parmesan into a shallow dish. Shape the minced chicken mixture into small nuggets and coat with the breadcrumb mixture. Line nuggets on a baking sheet and drizzle with oil or spray with cooking spray.
Bake 12-15 minutes then transfer under the broiler for 2-3 minute or until nuggets are lightly golden. Serve warm with ketchup or your favorite dipping sauce.
Notes
Nuggets will keep fresh in the fridge for 2 days or in the freezer for up to 1 month. Re-heat in the microwave or toaster oven.