For eight people as a part of a course.
Put a crock pot on the simmer setting and place into it:
600g beef - cubed
2 medium onions chopped, as you like
Add cider to cover. Let simmer for several hours (at four, more like six).
Check once an hour and add cider to keep contents covered.
Dissolve 4-6 threads of saffron in a little of the broth and add it to the stew (Optional).
To finish you may want to thicken the stew with breadcrumbs.