I remember first eating this recipe as a goodbye lunch served by good neighbors the day we moved from Zanesville to Findlay back in 1968. It was such a hit we had to have the recipe. Now it is Hunter's absolute fav and I have it baking right now and it smells awesome! He packs it in his lunch and reheats in microwave at work.
1 1/2# chipped chopped ham (I use deli ham sliced thin for sandwiches)
1 tbsp mustard
1 cup ketchup
1/2 cup brown sugar
1 tbsp worchestire sauce
1 tbsp vinegar
Mix together sauce ingredients. I bake it in a large baking dish and put in dish in two layers. First layer of ham, pour 1/2 sauce over it, put last layer of ham, pour rest of sauce over it. Bake 350 for about an hour. Cut in squares to fit buns.