Japanese Spareribs - cooking recipe

Ingredients

2 to 3 lb. spareribs (salt and peppered lightly)
1 (11 oz.) bottle ketchup
1/4 c. vinegar
1/2 c. sugar
1 Tbsp. flour
salt and pepper
1/4 c. water
1/2 c. celery
1/2 c. green onion
1/2 c. green pepper, chopped
8 oz. cubed pineapple

Preparation

Place spareribs in oven at 350\u00b0 for 1 1/2 hours until almost tender.
In meantime, mix all other ingredients together.
Add sugar to your taste and mix into spareribs and cook for additional hour or until done.