Caramelised onion jam gravy

Name: Caramelised onion jam gravy
Prep time: 15 min
Cook time: 2 h 5 min
Total time: 2 h 5 min
Yield: 6 portions
Ingredients: 2 tbsp olive oil; 1200 g brown onion; 100 g brown sugar; 200 g dry white wine; 80 g verjuice; 4 tsp kecap manis; 1 tsp ground black pepper; 1 tsp yellow mustard seeds; 1 tsp sea salt; 2 garlic cloves; 4 sprigs fresh thyme; 350 g water; 2 - 3 tsp Chicken stock paste; 1 tbsp plain flour; 50 g red wine