Fry sliced leeks, onion and garlic in olive oil at medium-high heat until leeks and onion melt and start to roast a bit. Add squash cubes, and mix well. Soak with chicken broth. Pepper. Bring to a boil and simmer for 20 minutes until squash tenders.
Set in the mixer until obtaining a smooth texture. Add cashew cream, season and mix again. When serving, garnish with a few fresh chives.
In a container with a hermetic lid, soak raw cashews with enough water to cover all cashews. Refrigerate for 4 hours. Rinse cashews and set them in a mixer bowl. Add 100 ml of water and activate the mixer until obtaining a smooth, creamy and homogenized mixture of cashews and water. Cashew cream may be kept a few days in the refrigirator. May be used with desserts or main meal by replacing milk or any dairy products. This basic preparation is frequently used for vegan cooking.