1 c. ketchup
1/2 c. water
1/2 tsp. deli mustard (not powdered)
2 tbsp. vinegar
1 to 1 1/2 lb. ground ham
1/3 c. brown sugar

Mix all ingredients together. Add to a casserole dish; bake at 250°F for 1 hour. Spoon onto bread, buns or favorite crackers.