Sloppy joes - Good Food Middle East

Ingredients

• 2 tbsp olive oil
• 400g beef mince
• 1 onion, finely chopped
• 1 green pepper, finely chopped
• 1 tsp garlic granules
• 1 tsp smoked paprika
• 1 tsp light brown soft sugar
• 1 tbsp malt vinegar
• 4 tbsp ketchup
• 1 tbsp Dijon mustard or 1⁄2 tsp mustard powder
• 300ml beef stock
• 4 burger buns, split
• chilli sauce, to serve (optional)