Mushroom Soup with Shiitake

Ingredients

• shiitake - 0.4 lb (200 g)
• onion - 1 onion (or 2 - 3 shallots)
• celery - 2 stalks of celery with part of the leaves
• parsley - 1/2 small bunch
• carrots - 2 pcs. (larger)
• olive oil - 3 1/3 tbsp (50 ml)
• butter - 0.9 oz (25 g) or a little more
• cooking cream - 4 - 5 tbsp.
• black pepper - by taste
• lemongrass - 3 pinches (powder)
• salt - by taste
• flour - 2 tbsp. (with a tip)
• For an extra flavor
• lemons - 1 pc.
• garlic - 1 clove