Honey mustard bbq sausages and onions

While it may be too hot to think of roasting sausages right now, bung them on the BBQ and you have the perfect outdoors sandwich - there are few things I love more than the sweet, tangy flavour of sausages cooked with honey and mustard. Caramelised onions with honey and mustard are a bonus.
I'm giving you the cooking times for roasting in the oven, but they do work really well on a grill, especially if you impale them on skewers to keep them together and baste liberally with the honey mustard dressing.
ingredients:
16 good quality sausages or about 30 cocktail sausages
4 tbsp runny honey
4-5 tbsp wholegrain mustard
3 x large onions, finely sliced
a generous pinch of salt
olive oil or fat from the cooked sausages
2 tbsp sherry vinegar (about 1 tbsp)
1 tbsp runny honey
2 tbsp Dijon mustard
bread rolls, to serve
directions:
1. Preheat the oven to 200C / Gas Mark 6.
2. Combine the honey and mustard in a mixing bowl.
3. Place the sausages in a roasting dish and pour over the honey mustard dressing bar 2 to 3 tablespoons (which you are reserving to cook the onions), ensuring that the sausages are well coated.
4. Bake in the oven for 20 to 25 minutes. (It may need another 5 minutes to get all the sausages browned). Turn the sausages occasionally to ensure that they are nicely browned and sticky.
5. While the sausages are cooking, heat a little olive oil in a pan or some of the fat which exudes from the sausages while cooking. Add the onions together with a generous pinch of salt. Gently fry for 15 to 20 minutes over a medium heat until beginning to caramelise. Make sure you check that the onions aren't burning!
6. Stir in the vinegar, mustard and honey and cook for a further 1 to 2 minutes.
Add generous dollops of the honey-mustard onions over bread buns. Top with halved sausages and a drizzle of either ketchup or brown sauce.