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- ½ cup extra-virgin olive oil
- 2 tbsp. bacon drippings
- ½ cup
- In a large Dutch oven, heat olive oil, bacon drippings, and butter over medium heat.
- Add onions, honey, salt, and pepper. Sauté until onions are tender.
- Add stock and balsamic vinegar, and cook for 15–20 minutes.
- Reduce heat to low. Stir in the bourbon and cook for 30 minutes, or until it becomes semi-thick.