Oven-Caramelized Onions - cooking recipe

Ingredients

3 large yellow onions, sliced
4 tablespoons olive oil
2 tablespoons balsamic vinegar
2 tablespoons beef broth or 2 tablespoons water
1 tablespoon sugar
1 teaspoon salt
1/4 teaspoon pepper

Preparation

Preheat the oven to 400°F.
Line a baking sheet with aluminum foil.
Add the onions to the prepared baking sheet and top with the remaining ingredients. Toss to combine thoroughly, separating the onion slices.
the onion slices.
Bake for 1 hour, tossing every 10 minutes with silicone tongs.
By now the onions should be softened and golden in color. If it appears dry, add a splash more broth or water.
Continue to bake for 15-20 minutes, tossing twice.
Remove the onions from the oven and season with more salt and pepper if desired.