20 oz pineapple
3T brown sugar
6T teriyaki
1T vinegar
1T ketchup
1 lb ground beef
2 T onion
1/4 c water
Drain pineapple.  Combine syrup, brown sugar, half teriyaki, vinegar, and ketchup.  Mix beef with rest of teriyaki and onion (using a cheese grater works really well for dealing with the onion).  Shape into meatballs.  Brown.  Drain off fat.  Add syrup mixture.  Simmer 10 minutes.  Add thickener to sauce.  Add pineapple.  Stir and cook until sauce thickens.  Side note:  If you think you have any chemical allergies – be very very cautious about teriyaki sauces.  I’ve only found one I’m not allergic to, as far as premades are concerned.