- 3–4 lbs beef oxtails, trimmed 
- 2 tbsp vegetable oil 
- 1 large onion, chopped 
- 3 garlic cloves, minced 
- 2 carrots, diced 
- 2 celery stalks, diced 
- 2 tbsp tomato paste 
- 2 cups beef broth 
- 1 cup red wine (optional, can sub with more broth) 
- 2 tbsp soy sauce 
- 1 tbsp Worcestershire sauce 
- 2 sprigs fresh thyme (or 1 tsp dried) 
- 2 bay leaves 
- Salt & black pepper, to taste 
