This recipe is from my Mother's recipe box and has been off and on my "to try " list for years. It's written on a little orange recipe card. Nice 70's look!!! ;~)
2 cups soft bread crumbs
1/4 cup chopped onion
1 t. salt
1/8 t. thyme
1 lb. ground beef
1/2 cup water
1/4 cup vinegar
1 cup onion
1/4 cup brown sugar
1 T. flour
2 T. water
2 t. prepared mustard
Combine crumbs, onions, seasonings, 1/2 c. water. Let stand 5 min. Add meat. Shape into patties & brown. Cover with onion. Combine brown sugar, flour, vinegar, 2 T. water and mustard. Pour over meat. Cover and simmer 35 min.