Delicious Chicken Burger With Unagi Sauce - cooking recipe

Ingredients

Chicken Patties
1/4 cup onion, finely chopped
1/4 cup celery, finely chopped
6 tablespoons butter, divided
3 tablespoons all-purpose flour
1 1/3 cups buttermilk, divided
2 tablespoons fresh parsley, minced
1 1/2 teaspoons salt, divided
1 teaspoon onion salt
1/2 teaspoon celery salt
3/4 teaspoon pepper, divided
2 cups chicken, finely chopped (fresh or left over from another dish)
1 cup Japanese-style bread crumbs
2 cups water (omit if using left over chicken)
Chicken Burger
4 chicken, patties
2 big white onions, sliced
4 buns or 8 slices of white loaf bread
2 tablespoons japanese mayonnaise or 2 tablespoons any mayonnaise
4 tablespoons japanese eel soy sauce (Unagi Sauce)
1/4 teaspoon japanese chili powder (Toragashi Powder) (optional)

Preparation

Chicken Patties :
If using fresh ground chicken, season chicken with 1/2 tsp salt and 1/2 tsp pepper. Simmer in 2 cups of water until ground chicken turned white in color. Drain and set aside. If using left-over chicken, finely chopped left over chicken and set aside.
In a medium saucepan, saute onion and celery in 3 tbsp butter until tender. Stir in flour until smooth. Add 1 cup milk; mix well. Bring to a boil; cook and stir for 2 minutes
Add parsley, 1 tsp salt, 1/4 tsp pepper, onion salt and celery salt. Add the chicken, Remove from heat. Chill until completely cooled.
Shape into 6 round patties or square, as desired (using about 1/3 cup mixture for each patty*.).
Roll in crumbs, then dip into remaining 1/3 cup buttermilk; Roll again in crumbs. (Patties may be frozen at this point).
In a skillet, cook patties in remaining 3 tbsp butter for 3 minutes on each side.
*For frozen patties, cook in butter for 5 - 6 minutes on each side or until golden and heated through.
Chicken Burger :
In another hot pan, sear whole onion slices until golden brown and caramelized.
Assemble the burgers. Spread bottom half with Japanese mayonnaise. Then sprinkle with Toragashi Powder (optional). Set chicken patty in bun or slice of loaf bread and top with a few seared onion slices.
Spread Unagi Sauce on the onions.
Cover with top bun or slice of loan bread.