fry bacon until crispy, remove bacon and cut into small pieces
add 1 cup minced onion to bacon drippings
stir in one Tablespoon flour, add and bring to boil 3/4 cups beans juice, 1/4 cup white vinegar, 2 tablespoons sugar, 1 tsp salt, 1/4 tsp pepper
stir in 2-3 cups green beans and let siimer on low