Preheat oven to 325?F

Combine the ketchup, vinegar, sugar,and Worcestershire in a bowel and mix.

Pun in refrigerator

Combine the crushed crackers,eggs, 2 tablespoons of the sauce and the onion soup mix, salt and pepper into the hamburger and knead until well mixed and pasty

Bake at 350 for an hour and a half to 2 hours

Pour remainder of the sauce on during the last 15 minutes of baking