Heat oven to 375 degrees.

Soak cashews in water for at least two hours or overnight.

Core tomatoes, peel onions and garlic cloves, and place in a large baking dish.* Drizzle olive oil over tomatoes, etc. and place in preheated oven. Roast until tomatoes are completely soft, about 30 minutes. Allow to cool.

Run tomato mixture through a food processor or blender in batches, thinning as necessary with soup stock. Sieve through medium-fine sieve to remove skins, pressing the mixture to get out the maximum amount of tomato pulp.

Add 1 teaspoon pure vanilla extract, lemon juice, salt and pepper and/or soy sauce. I like soy sauce as it gives a nice depth and richness to the soup. Taste and adjust seasoning.

Put cashews with a small amount of water in blender. Blend on medium speed, adding water as needed, until mixture is the thickness of heavy cream.

Blend 2/3 of the mixture into soup and add more vanilla extract, lemon and other seasonings as needed.

Heat before serving. Add small dollop of cashew cream in each bowl and sprinkle with chives if desired.