Ingredients

• 2 Tbsp olive oil
• 1 Tbsp butter
• 2-4 large Spanish onions, halved and thinly sliced
• 1/2 tsp coarse salt, or to taste
• 1/2 tsp black pepper, or to taste
• 1 cup balsamic vinegar
• 1 cup low-sodium soy sauce
• 1/2 cup dry white wine
• 1/2 cup water
• 1/4 cup dark brown sugar
• 8 shortribs (or 4 Lb of  pork ribs)
• 4 garlic cloves, finely chopped
• 2 whole start anise (optional)
• 1 bay leaf

Directions

1. Preheat the oven to 350F.
2. In sauce pan melt oil and butter on medium-high heat
3. In sauce pan cook onions, salt, and pepper until softened for about 5 minutes
4. Turn down and simmer until golden brown
5. In large casserole dish combine vinegar, soy sauce, wine, water, sugar, garlic, anise, and bay leaf and bring to a boil
6. Add ribs
7. Place onions on top
8. Cook for 2-3 hours until meat falls apart