Smoky slow cooker pork with Boston baked beans - Good Food Middle East

Ingredients

• 1kg-1.5kg boneless pork shoulder joint
• 2 tbsp olive oil
• 2 onions , finely chopped
• 1 stick celery , finely chopped
• 2 garlic cloves , chopped
• 2 bay leaves
• 700g passata
• 700ml vegetable stock
• 2 whole chipotles or 2-3 tsp chipotle paste
• 2 tbsp smoked paprika
• 1 tbsp light brown soft sugar plus extra to serve (optional)
• 2 tbsp black treacle
• 2 tbsp balsamic vinegar
• 3 tbsp Worcestershire sauce , plus extra to serve (optional)
• 750g jarred haricot beans , drained
• crusty bread , soured cream and Tabasco (optional), to serve