Ingredients:
1 lb red onions, peeled and sliced 1/2 inch thick
3 lbs potatoes, peeled and sliced 1/2 inch thick
1 cup butter
salt & freshly ground black pepper
6 fresh sage leaves, finely chopped
3/4 cup balsamic vinegar
Directions:
Preheat oven to 400 F.
Melt butter in a large skillet, add onions and potatoes and toss to coat.
Cook over medium heat, turning occasionally until vegetables are golden brown.
Season with salt and pepper, add sage and 1/2 the vinegar and mix.
Place in an ovenproof dish, cover and bake 20 minutes.
Add remaining vinegar, bake uncovered 20-30 minutes or until potatoes are tender.
Servings: 4-6
Time preparation: 20 min.
Time total: 80 min.