Someone said :
I've used lamb stock that I've made for beef stew and it is amazing.
Good to hear! Tonight I browned a kilo of lap of lamb and sweated some onions and garlic with it. Then I added 2 pints of water, salt, pepper and and bay leaf and simmered in a large stock pot with the lid on.
I added another pint of water and simmered again.
Now I will leave it overnight to cool, skim off the fat, and add half a kilo of lean diced beef tomorrow. Will probably chuck in some carrots, a tomato and some paprika too.
Should be a fine winter meal by the end of it.
Or horrible. I don't know which. Will find out tomorrow night.