MEAT LOAF MIXTURE:

2 lbs. hamburger
1 c. bread crumbs
1 onion (optional)
1 egg, beaten
3/4 tsp. pepper
1 tsp. salt
1 c. catsup

SAUCE:

2 tbsp. brown sugar
2 tbsp. mustard
2 tbsp. vinegar
1 sm. can tomato sauce

Combine meat loaf mixture and form into a loaf. Cook for 30 minutes at 325 degrees; then add the sauce on top. Continue cooking for 45 minutes.