
Balsamic Onion Marmalade Recipe | Cook the Book
Ingredients (5)
- 1 tablespoon vegetable oil
- 4 medium onions, thinly sliced (about 8 cups)
- Kosher salt and freshly ground black pepper
- 1/3 cup sugar
- 2/3 cup balsamic vinegar
Directions
Learn how to make this recipe at Serious Eats