Cream Of Courgette Soup

2 tbsp Olive oil 15 g Butter 1 Medium Onion	Heat oil and butter in a large pan Finely chop the onions Cook onion gently for 5 mins
900 g Courgettes 1 tsp Oregano 600 ml Vegetable Stock 1 tsp Salt black pepper	Slice the courgettes Add the courgettes, stock, oregano, salt and pepper Simmer for 30 mins stirring occasionally
100 g Dolcelatta or Istanboly cheese 300 ml Cream	Stir in the dolcelatte Whizz in the blender Add most of cream reheat gently
Fresh oregano leaves Cream	Serve and decorate with cream and oregano leaves