method,
melf half butter and cook onion and garlic for 5 mins in a covered pan
stir in flour and cook for 1 min (gentle)
gradually add stock, stirring all the time
add half the mushrooms and parsley
cover, bring to boil and simmer gently for 10-15 mins until the veg is tender
cool a little and puree
in remaining butter, saute remaining mushrooms for 5 mins
add to soup
simmer gently for 3 mins
add cream and tase for seasoning
serve with parsly garnish