Preheat oven to 400 degrees
In a large bowl, add ground chicken, egg, scallion, garlic, onion, celery, mayo, salt, pepper, and coconut flour
Mix together and form 4 oz. patties.
Add Avocado Oil to a cast iron skillet until warm
Place chicken patties in skillet and with a spatula, pat the patties to slightly flatten
Brown Patties on each side for 3-4 minutes until golden brown
With Oven Mitts on, carefully remove the skillet from the stove top to the oven
Bake for 15 - 20 minutes until internal temperature reaches 165 degrees
Remove from oven and serve