Peel the potatoes and cut them into chunks, keep the skin, rinse them well and pat the dry with a kitchen towel. Chop the leeks, all of it, you can eat the tops and they’re perfect in a soup because everything is blended.
Sauté onion in some olive oil and water then add leeks and garlic and cook for 5/10 minutes. Add chopped potatoes and vegetable stock until everything is covered. Cook for 10 minutes until the potatoes are soft.
In the meantime pre heat the oven to 200C. On a baking tray with baking sheet, add bread, potato skins and season with olive oil, salt and rosemary. Bake until crispy, about 5/10 minutes.
Once the potatoes are soft, season everything with salt pepper and mixed herbs, then blend it with a hand blender or transfer into a blender. Taste it and season with salt, pepper and some oil if necessary.
Add half of the cashew cream and mix. Use the rest to garnish the soup. Serve with croutons and crispy potato skins and season to taste.