This is a delicious soup, loved by all those in my family even the ones who pull their noses up at celery in any other guise:
1 whole head of celery including leaves, wash and chop into 1cm pieces
Chopped onion
50 gr butter
1 tablespoon plain flour
Bay leaf, salt, pepper
Vegetable or chicken stock - 1 litre
50 ml single cream (optional).
Saute onion and chopped up celery in the butter till soft, add stock, cook till celery is soft. Add flour (sprinkled in) and cook bit longer (5 mins). Rescue bay leaf and discard before blending in saucepan with hand held 'plunge' blender. Or whizz in table top blender.
Serve with a swirl of cream on this gorgeous pale green soup. Or stir in the all of the single cream for a more indulgent soup.
The main ingredient for the one I made the other night cost all of £1.00 - the cost of the organic celery on special (didn't use cream). It's quick to make too.