Cream Of Mushroom Soup is one of my favourites. This particular recipe is closely based on one from Julia Child. I saw the recipe in Mastering The Art Of French Cooking.
I have adapted the recipe slightly but stayed quite close to the original. After all why tinker with perfection?
The recipe isn’t difficult to make though there are a few steps to making the soup. As part of the process the stock is flavoured with onion and the stalks from the mushrooms, as well as some herbs. The stock is then strained off for the soup. The onions etc are not needed for the soup but I don’t discard them, I simply incorporate them into something else to save wastage. I guess, if desired they could be blitzed into a smooth puree and added back into the soup.
The list of ingredients isn’t too large either so that’s good. Basically just mushrooms, stock, herbs, onion, butter and cream as well as a little seasoning, and some flour for thickening.
Firstly the onions are softened in butter

The the flour is added to create a thickened roux. Boiling stock, infused with bay leaf, parsley and thyme, is then poured into the roux and mixed to incorporate everything.
The chopped stems of the mushrooms are added too and then allowed to simmer for 20 minutes.

The stock is then strained and returned to the pan.

Then the thinly sliced mushrooms are cooked for about 5 minutes in a little butter, with a teaspoon of lemon juice too.

That cooking releases all the juices from the mushrooms. The mushrooms, complete with the juices, are then poured into the stock and allowed to simmer for 10 minutes.
Then egg yolks are mixed with some cream and that is tempered with some of the soup stock. Once tempered the cream mixture is added into the soup stock and heated for just one minute, without reaching simmering point. The soup, adjusted for seasoning, is then ready to serve.
My Soup
I made the soup exactly as described above. I had a taste immediately, after adjusting the seasoning to my preference, and it was simply wonderful.
However, I just had a small taste since I intended to have the soup for lunch the following day. That extra day, as often seems to happen, seemed to give the soup more intense mushroom flavour and it was so creamy. Very good indeed.
Another stove top recipe is Bramboračka – Czech Potato Soup

