Bavarian Chicken

This is the recipe that started the hunt. 

My Aunt Gail messaged me a couple of weeks ago, looking for this. I didn't remember it, so I asked my mother. She remembered eating it, but couldn't remember how to make it. This past week, she was looking through some of her stuff and found her recipe boxes. The first recipe in the box - Bavarian Chicken! Grandpie works in mysterious ways...



Chicken
1/2 c ketchup
1 c stock 
2 T vinegar 
3 T sugar 
1/2 t poultry seasoning 
salt, pepper
2 T corn starch
celery and onions

Serve with rice.

That's it for instructions. 

I am assuming you would chop and saute the celery and onions in a little butter or oil first, then add the rest of the ingredients, mix and pour over chicken pieces then bake (45 minutes at 375).*
  Come to think of it, I do remember eating this....

*According to my Aunt Gail, Grandpie would put the chicken in a dutch oven with the ingredients and simmer until the chicken fell off the bone. This way it could be kept warm in the case of someone was late to dinner.