Make space in freezer to freeze nuggets.
Cut chicken breasts into small cubes.
Use a blender or food processor to chop chicken into small ground pieces.
Place ground chicken into a mixing bowl and season with salt and pepper.
Place parchment paper onto a baking sheet.
Using wet hands, shape ground chicken into nugget shapes that resemble McDonalds.
Place chicken nuggets on parchment paper and freeze for 30 minutes.
Mix flour, 1/2 cup cornstarch, salt, onion powder, garlic powder and pepper in a shallow dish.
In a separate shallow dish, add eggs, water and 1/4th cup cornstarch and beat well.
Take frozen nuggets and dip in dry mixture, then wet mixture and then dry and wet again.
Heat hot oil in a skillet and cook chicken for about 7-8 minutes or until browned.
Drain chicken nuggets on paper towels.
Serve nuggets hot with dipping sauce if desired.