
This silky chilled corn soup captures the sweetness of peak summer corn with a rich homemade corn stock, buttery aromatics, and a splash of cream. Serve it cold as an elegant starter or light lunch with a simple garnish of sauteed corn and green onion.
Cut the kernels from the corn cobs and set the kernels aside. Cut each cob in half.
Make the corn stock: place the corn cobs in a large pot with 3000 ml water. Bring to a boil, reduce the heat to medium-low, and simmer for 30 minutes. Strain the stock and discard the cobs. You should have about 2000 ml stock; if you have more, simmer it down, and if you have less, top it up with water.
Prepare the herb sachet by wrapping the thyme, bay leaf, black peppercorns, and coriander seeds in cheesecloth. Tie securely with kitchen twine.
In a large soup pot, melt the butter over medium heat. Add the onion, celery, leek, and garlic, then cook for 4 to 5 minutes until softened but not browned.
Add the corn kernels and cook for 6 to 7 minutes, stirring often, until the corn is glossy and lightly softened.
Pour in the corn stock and add the herb sachet. Bring the soup to a gentle boil, then lower the heat and simmer for 20 minutes.
Stir in the cream and cook for 3 minutes more to blend the flavors.
Remove and discard the sachet. Blend the soup in batches until very smooth. If blending while hot, leave the blender vent open and cover it loosely with a folded kitchen towel to prevent pressure from building.
Pass the blended soup through a fine-mesh sieve for an extra-smooth texture.
Season with salt to taste, adding a little more if needed.
Let the soup cool to room temperature, then refrigerate until fully chilled.
Serve cold, cool, or slightly warm. Garnish with sauteed corn kernels, sliced green onion, and a drizzle of olive oil if desired.
For the best flavor, use very fresh sweet corn. If you do not have leek, use extra onion or a few shallots instead. Chill the soup for at least 3 hours before serving, and store it in an airtight container in the refrigerator for up to 3 days.





