1 pkg. frozen meatballs (Italian style)
2/3 c. ketchup
1/3 c. vinegar
1 can pineapple chunks, drained
1/3 c. brown sugar

Mix brown sugar with vinegar until dissolved. Add ketchup and pineapple chunks. Pour over meatballs that have been placed in a crock-pot and cook on low for 4 hours or until hot.

You may need to double the sauce recipe if you use a big bag of meatballs.

Enjoy!