Beer Onions - great for the BBQ

As we head into barbecue season these are a great accompaniment to grilled meats - fantastic with sausages - a great all rounder.
Made with beer - you want something dark, but not too bitter.
The onions are cooked slowly - you are looking for the sweetness to come out.
You can make these in bulk - and I find they keep in the fridge for a good few days.

50g butter
1 tbsp oil
2 large onions - sliced
1 tbsp honey
1 tbsp wholegrain mustard
150ml beer

1 Melt the butter and oil in a large heavy bottomed pan that has a lid.
2 Add the sliced onions - give a good stir and cook gently, for 10 minutes, with the lid on.
3 With the onions now well softened, add the beer, honey and mustard.
4 Cook gently with the lid off until the beer has reduced and you are left with a relish like consistency - as in the photo.
5 Enjoy hot or cold - really great with sausages!!