This chilled corn soup captures peak summer sweetness in a silky, buttery bowl that is served cold with sauteed corn kernels and fresh green onion on top.
Fresh corn cobs simmer into a light, sweet stock that forms the base, so the flavor tastes like concentrated corn rather than cream. Make it a day ahead and it only gets better in the refrigerator.
Table of Contents
Why This Chilled Corn Soup Recipe Works
Instead of discarding the cobs, you simmer them in water for 30 minutes. This extracts the milky, sweet corn flavor that plain water or store bought broth cannot match.
A small sachet of thyme, bay leaf, peppercorns, and coriander seeds perfumes the soup gently and is lifted out before blending, so no one bites into a whole spice.
Blending the soup and passing it through a fine sieve removes the tough kernel skins. That step gives a silky smoothness that makes cold soup feel refined.
Ingredients for Chilled Corn Soup
- 8 ears yellow sweet corn
- 3 quarts water
- 7 tablespoons unsalted butter, plus 1 tablespoon for the garnish
- 2 cloves garlic, chopped
- 1/2 yellow onion, finely sliced
- 1 stalk celery, sliced
- 1/2 leek, white part only, finely sliced (or use another 1/2 onion)
- 1 teaspoon kosher salt, plus more to taste
- 1 cup heavy cream
- 2 sprigs fresh thyme
- 1 bay leaf, fresh if possible
- 1 teaspoon black peppercorns
- 1 teaspoon coriander seeds
- 1/4 cup sliced green onion, for garnish
- 1 cup extra corn kernels, for the garnish
- Extra virgin olive oil, for drizzling
Fresh corn: Choose ears with plump, bright kernels and green husks. Cut the kernels off the cobs and save every cob for the stock.
Butter: Unsalted butter sweats the vegetables and rounds out the soup. Using unsalted lets you control the final seasoning.
Leek and celery: They bring a gentle, savory background that supports the corn. Rinse the leek well because grit hides between the layers.
Heavy cream: A cup of full fat cream gives body and a smooth finish. Add it near the end so it only has to warm through.
Spice sachet: Thyme, bay leaf, peppercorns, and coriander seeds tied in cheesecloth flavor the soup and lift out cleanly.
How to Make Chilled Corn Soup
1. Cut the kernels Stand each ear upright and slice the kernels off into a bowl. Break the cobs in half and set the kernels aside.
2. Simmer the cobs Place the cobs and 3 quarts of water in a large pot, bring to a boil, then lower to medium-low and simmer 30 minutes. Strain the stock. You should have about 2 quarts, so simmer longer to reduce or add water to reach that amount.
3. Make the sachet Tie the bay leaf, thyme, peppercorns, and coriander seeds in a small square of cheesecloth with kitchen twine.
4. Soften the vegetables Melt 7 tablespoons of butter in a clean pot over medium-high heat. Add the onion, celery, leek, and garlic and cook 4 to 5 minutes until soft but not browned.
5. Cook the corn Add the corn kernels and cook 6 to 7 minutes, stirring often, until they turn bright and smell sweet.
6. Simmer the soup Pour in the corn stock, add the sachet and 1 teaspoon of salt, and simmer 20 minutes. Stir in the cream and warm for 3 minutes.
7. Blend and strain Remove the sachet. Blend in batches until smooth, venting the lid and covering it with a folded towel. Pass the soup through a fine sieve and taste for salt.
8. Chill and garnish Cool to room temperature within 2 hours, then refrigerate about 3 hours until cold. Saute the extra kernels in 1 tablespoon of butter until golden, and serve the soup topped with the corn, green onion, and olive oil.
How to Serve Chilled Corn Soup
Serve this soup in small cups as a starter, in shot glasses for a party, or in bowls as a light main with crusty bread. A crisp Italian house salad and fluffy homemade dinner rolls round out a summer lunch. For a drink on the side, try a strawberry pineapple mojito or a blueberry mojito pitcher.
How to Store and Reheat Chilled Corn Soup
Cool the soup quickly in shallow containers, then refrigerate in an airtight container for up to 3 days. Serve cold, or warm gently over low heat without boiling if you prefer it warm. Do not freeze, because the cream can separate when thawed. Keep the garnish separate and saute the extra kernels fresh before serving.
Tips and Variations for Chilled Corn Soup
Use fresh corn at its peak. The sweeter the corn, the less seasoning the soup needs.
Strain the stock well. Press on the cobs in the sieve to extract every bit of liquid and flavor.
Check the stock volume. Aim for 2 quarts. Too much liquid thins the soup, and too little makes it heavy.
Blend safely. Hot soup expands in a sealed blender, so vent the lid and cover the opening with a towel.
Use frozen corn in a pinch. Frozen kernels can replace fresh, but replace the cob stock with 2 quarts of low sodium vegetable broth.
Add gentle heat. A pinch of cayenne or diced jalapeno sauteed with the vegetables adds a light kick.
Try a dairy free version. Swap part of the cream for coconut milk for a different flavor.
Chill safely. Move hot soup to shallow containers so it cools fast, as explained in this UW Extension leftovers safety article.
Frequently Asked Questions About Chilled Corn Soup
Can I serve chilled corn soup warm?
Yes. It tastes great warm or at room temperature as well. Warm it gently over low heat and do not let it boil after the cream goes in.
How long does chilled corn soup need to chill?
Plan on about 3 hours in the refrigerator for the soup to turn fully cold. Overnight chilling gives the flavors even more time to blend.
Can I make chilled corn soup ahead of time?
Yes. Make it up to 2 days ahead and keep it covered in the refrigerator. Prepare the sauteed corn garnish just before serving.
Why strain the soup?
Corn kernels have tough skins that blenders do not fully break down. Straining removes them for a silky texture.
Do I need a sachet for the spices?
It is not required, but it keeps whole peppercorns and seeds out of the bowl. If you skip it, strain the soup carefully.
Chilled Corn Soup with Sauteed Corn
Equipment
- Large Stockpot
- Large pot
- Blender
- Fine mesh sieve
- Cheesecloth and kitchen twine
Ingredients
Main Ingredients
- 8 ears yellow corn kernels cut off, cobs saved
- 12 cup water for the cob stock
- 7 tbsp unsalted butter for the soup
- 2 cloves garlic chopped
- ½ yellow onion finely sliced
- 1 celery stalk sliced
- ½ leek white part only, finely sliced, or use 1/2 onion
- 1 tsp kosher salt plus more to taste
- 1 cup heavy cream full fat
- 2 sprigs fresh thyme for the sachet
- 1 bay leaf for the sachet
- 1 tsp black peppercorns for the sachet
- 1 tsp coriander seeds for the sachet
- 1 cup corn kernels for the garnish
- 1 tbsp unsalted butter for the garnish
- ¼ cup green onion sliced, for the garnish
- 1 tbsp extra virgin olive oil for drizzling
Instructions
Cooking
- Cut and save. Slice the kernels from 8 ears into a bowl and halve the cobs.
- Make the corn stock. Simmer the cobs in 12 cups of water for 30 minutes, strain, and adjust to 8 cups by reducing or adding water.
- Tie the sachet. Wrap the bay leaf, thyme, peppercorns, and coriander seeds in cheesecloth and tie it closed.
- Sweat the vegetables. Melt 7 tablespoons of butter over medium-high heat and cook the onion, celery, leek, and garlic 4 to 5 minutes until tender.
- Add the corn. Stir in the kernels and cook 6 to 7 minutes until bright and fragrant.
- Simmer. Add the stock, sachet, and salt, simmer 20 minutes, then stir in the cream and heat 3 minutes.
- Blend. Discard the sachet, puree in batches with the lid vented, strain through a fine sieve, and adjust the salt.
- Chill and serve. Refrigerate until cold, about 3 hours. Brown the garnish kernels in 1 tablespoon of butter and serve over the soup with green onion and olive oil.
