2008
Creamy Mushroom Soup with Truffle Oil
If the first secret of frugal eating is planning, the second is being prepared to change the plan at the drop of a hat. Or more precisely at the drop of a price. It’s why we were unexpectedly eating scrumptious pineapple desserts at the weekend and why we’ll have mushroom soup tonight.
Lidl mushrooms were reduced last week by almost 60% to 49c for a 250g pack. Now that’s a deal.
The problem with most mushrooms on sale these days is that they are actually pretty tasteless, and not just the ones in Lidl either. So, to make a soup with some ooomph, you need to add quite a lot of flavour in the cooking, doing all you can to maximise the soup’s “mushroominess”.
You can do this with careful cooking but also with a little swirl of extravagance at the end.

Pictures of creamed soup are really sort of pointless aren’t they? They just look like coloured liquid. But trust me, this tastes very good!
2 onions, chopped
1 large stick celery, chopped
3 cloves garlic
250g mushrooms
1.5 pints chicken stock
1/2 a small head cauliflower or 1/4 a large one
1/2 teaspoon pesto
1 oz butter
Salt and pepper to taste
50ml cream
White Truffle Oil
Put half the butter in a pan with a lid and melt until it starts to froth. Lower the heat, then add the onions and celery. Sauté until the onions are becoming transparent. Add the rest of the butter and the mushrooms. It’s fine to add the mushrooms whole. Stir the mushrooms to coat them well in the butter as it melts.
Cover the pan with a lid, reduce the heat to low and let these vegetables stew gently for about 15-20 mins. Make sure the heat is low enough that the vegetables don’t brown. The mushrooms should start to release liquid and keep things moist, but if it is getting a bit dry add a few spoonfuls of stock. Then add the chopped garlic and continue stewing for another 5 minutes.
This slow cooking really brings out the flavour of the mushrooms and also makes the onion very sweet.
Put the cauliflower in a saucepan with the chicken stock. Bring to the boil, then add the mushrooms and the other veg. Simmer for about 20 mins or until the cauliflower is soft. Remove from the heat and stir in the pesto.
You can now blend the soup either by pouring it all into a blender or whizzing it with a stick blender. In either case blend until it is really smooth. Return to the heat, stir in the cream. Taste the soup before adding salt and pepper - if you’ve used a stock cube it may well be salty enough already.
Serve with a swirl of white truffle oil on top and crusty rolls on the side.
This makes around 2 pints of tasty, satisfying and very mushroomy soup.
What Did it Cost?
Everything for this soup, apart from the stock which was homemade and the oil which came from a deli, was bought in Lidl. Homemade stock is hard to price so I’ve put the price of one stock cube on it.
Costs: mushrooms 49c; celery 10c; onions 12c; celery 10c; garlic 5c; pesto 5c; butter 15c; cream 20c; stock 25c; truffle oil €1.20.
So the full pot, which is about 4-6 servings of soup depending how hungry you are, costs about €2.60, or around 45c-65c per serving.
A Little (Worthwhile) Extravagance
The truffle oil I’m using cost something like €30, or maybe a little more, for 250ml. It seems very expensive but I used less than half a teaspoon per bowl of soup, which was plenty. Admittedly it almost doubles the cost of the soup!
One of the advantages of getting good value where it’s available is that it allows you to splash out on more expensive ingredients at other times. The truffle oil adds a wonderful deep earthiness to the flavour and turns a good soup into a really special one for what is still a very economical price.



To make them, grate the cheese and put it in well separated little piles on a microwavable dish. The ones pictured took 2 minutes to cook on high in my 800W microwave, but it’ll depend on the amount of cheese and the power of the microwave. When done they are flat on the dish and just starting to become a little dry - it’s really trial and error to get the timing right.
