Over medium low heat in a medium saucepan, heat oil and butter until a droplet of water sizzles in the water and oil. Add both chopped onion and leaks. Season with salt and pepper to taste. Cook for about 5 minutes or until onions and leeks soften.
If using fresh corn, cook for 5 minutes. If using canned or frozen corn, cook for 2 minutes.
The broth of this soup is created with water, powdered vegetable stock, and chipotle morita powder. Add all three to the pot and bring to a simmer. Simmer for 5-8 minutes.
For creamy soup, blend everything until smooth. For silky soup, blend everything until smooth and then strain through a sieve. For a rustic chunky soup, blend half of soup and return that half back into pot with the rest of the unblended soup.
Bring soup back to a low simmer. Add milk and seeded vanilla and its bean pod. Taste for and adjust salt and pepper. Simmer for an additional 10 minutes.
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