Mushroom Soup

INGREDIENTS 

250 g mushrooms, cleaned and sliced
30 g butter or margarine
 1 small onion, thinly sliced
1 ½ tablespoons flour
250 ml of milk
500 g of vegetable stock Salt and pepper

PREPARATION 

Melt the butter for 1-2 minutes at 350 W in a microwaveable dish.
 Add the mushrooms and onion, then cook for
 8-10 minutes at 750 W; stir halfway through cooking.
Add the flour and stir.
Add the stock, continuing to stir.
 Cook at 750 W for 6-7 minutes, stirring twice; add the milk and stir.
 Cook at 750 W for 3-4 minu

 18 -23 min