Turkey Patties in Sweet and Sour Sauce

I so looked forward to the occasions when my mom would make this recipe. It was the closest thing we had to Chinese food as a child. I have altered it, especially getting rid of the ground beef. It has a wonderful flavor and texture. The onions soften and mellow with the cooking. It is GBD at its best.

Mix together and let stand 5 min.:
2 c. soft bread crumbs (or 1.5 cups of dried)
¼ c. chopped onion
dash of dried thyme
½ c. water

Add:
20 oz. or so of lean ground turkey (The size the Mr. Turkey, etc., packages come in)

Sweet and sour sauce:
1/2 c. brown sugar (may sub honey or agave syrup)
2 T. flour
½ c. white vinegar
¼ c. water
1 T. (heaping) prepared mustard
Wisk all together.

Shape turkey mix into patties, about 5. Brown in a skillet and turn over. Add 1c. sliced onions on top. Pour sauce over all. I cover some of the time. Cook at a simmer about 35 min.