
Every American knows what a sloppy joe is but I'm not sure about the rest of the world - certainly these dribbly saucy meaty sandwiches haven't really crossed the pond to the UK. But they're well worth a try.

450 grams lean minced (ground) beef
1 small onion
half a green bell pepper
half a red bell pepper
a dollop of tomato puree
2-3 tbsp tomato passata
1-2 tbsp tomato ketchup
1 tsp mustard
1 tbsp Worcestershire sauce
1-2 tbsp dark brown sugar
1-2 tbsp balsamic vinegar
1 tsp smoked paprika
1 chicken stock (bouillon) cube
salt and pepper to taste
4 burger bunsoil for sautéeing