Bring a pot of salted water to a boil and blanch the chicken fillets for 2-3 minutes. This will keep them tender and juicy inside.
Optional step: Transfer in a mixing bowl and cover with the pickle juice. Marinade for at least 30 minutes.
Preheat the oven to 425°F/200°C and line a large baking pan with baking paper.
Process the pork rinds or dried onions with the spices in a blender or food processor to get a crumb consistency. Transfer to a small bowl.
Whisk the egg in another bowl.
Get the chicken and drain the pickle juice. Dip each nugget into the whisked egg and the pork rind/dried onions mixture to coat well.
Transfer the nuggets to the baking pan and bake for 20 minutes until crispy.
Serve hot with mayonnaise or your favorite low carb dip.