Remove lid and place loosely on the top of the tub. Heat at 800W for 2 minutes. Remove and stir. Put back in for a further 2 minutes. Leave to stand for 1 minute.
Pour into a pan, over a medium heat bring to the boil stirring occasionally.
Water, mushrooms (28%), onions, celery, cream (milk), salted butter (milk), vegetable stock [salt, yeast extract, rice flour, vegetables [onions, celery, carrots, sunflower oil, turmeric, parsley], salt, black pepper.
Make chunky cheese croutons. Stamp out rounds of bread with a small cookie cutter. Fry gently in butter or olive oil. Grate a little of your favourite cheese over the top, then melt it under the grill. Float on soup just before serving.