Boil the potatoes in their skins. Bacon cut into cubes, add finely sliced onions, fried until Golden brown with butter in it. Fry until light Golden color.

Add the balsamic vinegar ( before it was replaced with red wine),"Sweet" soy sauce "Kikkoman" ( in the beginning it was salt and sugar, but since now there's a sweet soy sauce "Kikkoman" is easier ), hot broth, and pepper. Mix well. Bring to a boil, give be to the desired consistency and remove from heat.

Peel the potatoes and slice them into rings or slices. For this dish would be the best potatoes are waxy varieties. It is less mushy and holds its shape well. I'm such a potato referred to as "clay." Hot potatoes to sauce and serve.