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When life gives you corn smut, make huitlacoche soup

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Last Updated on August 5, 2020 by Aaron von Frank

Got corn smut (Ustilago maydis) growing on your corn? You might be surprised to know that Latin American cultures consider corn smut to be a delicacy called huitlacoche. Here’s how to identify corn smut, plus a simple huitlacoche soup recipe. 


In 1977, fish wholesaler Lee Lantz came up with a great idea to increase consumer demand for an unpopular fish named “toothfish” which was, in fact, quite delicious. He renamed the toothfish “Chilean sea bass.”

After rebranding, consumer demand for Chilean sea bass took off. In fact, demand increased so much in recent decades that it decimated populations of the now-popular gourmet fish. Thankfully, that’s started to change, but would overfishing have been a problem in the first place if the name toothfish had never been changed? Probably not. 

On the Menu: Toothfish and Corn Smut

Similar phenomena happen elsewhere in the culinary world as well. Corn/maize which is native to North and Central America is commonly infected by a fungal pathogen (Ustilago maydis) that Americans call “corn smut.” 

American farmers hate corn smut, and use various methods to prevent it in their fields, ranging from fungicides to planting resistant corn varieties. After all, when you’re trying to sell corn to a commodities broker or even direct-to-consumer at the local farmers market, corn that looks like it was attacked by an alien zombie isn’t going to be too popular.

However, ever since native populations domesticated maize thousands of years ago, corn smut was a welcome sight to those indigenous populations, who – from the Aztecs to the Hopi – considered it a delicacy. Corn smut is still a welcome sight in Mexico, where it’s called huitlacoche (pronounced wee-tala-coach-a) and sold at market for far more than a normal ear of corn would fetch.

Huitlacoche for huitlacoche soup

We accidentally grew “corn truffles” in our garden! Doesn’t that sound better than “corn smut”?

What should huitlacoche be called in the US to generate consumer interest amongst English speakers? Maybe “corn truffles” or even “Mexican truffles,” as some are trying to rebrand it. Sure, these mushrooms are not actually truffles, but Chilean sea bass is not an actual bass.

Since when has honesty been requisite in our food labeling system? Sheesh.

You can find huitlacoche/Mexican truffles in most Mexican & Latino grocery stores, but it’s also starting to become a big trend amongst fancy American chefs and their patrons. Apparently, we have Josefina Howard, famed chef and owner of Rosa Mexicano in New York, to thank for sparking this trend. She served a meal at the James Beard House featuring dishes made from huitlacoche that became legendary.

How to Accidentally Grow Mexican Truffles or Huitlacoche or Corn Smut

Whatever you want to call it, corn smut is actually pretty easy to grow. Since it’s technically a pathogen, you can’t order spores to inoculate your corn with. Corn farmers living near you wouldn’t be happy.

However, since maize/corn and teosinte (corn’s wild ancestor) have been growing throughout the Americas virtually forever, the fungus is quite abundant in our soils and spores are likely always flying about on wet summer days looking for a host.

Once it finds a host, it infects all parts of the corn plant. We’ve not only seen smut growing on the corn ears and kernels, but also on the tassels and tassel internode from whence the tassels emerge.

How to Prepare Corn Smut

Unlike other wild mushrooms that we eat, corn smut is eaten even when it’s quite mature and sporing out. Parts of it may still be solid and other parts might be emitting black spores.

Carefully remove the husk and silk from the ear/s, and then cut the kernels and smut off of the ear with a sharp knife. Many of the larger, more infected kernels pulled right off by hand, so I removed those before removing all the other goodies from the cob with a knife.

Some of the primary garden-fresh ingredients for huitlacoche soup, clockwise: pipicha (herb), squash flowers, onions, chile pepper, hardneck garlic.

Some of the primary garden-fresh ingredients for huitlacoche soup, clockwise: pipicha (herb), squash flowers, onions, chile pepper, hardneck garlic.

Once removed, dice the smut to ready it for cooking.

Most recipes call for quite a bit of smut (ok, call it Mexican truffles if you’re getting tired of the word “smut”), at least one pound. With only a single ear of corn smut (about 3/4 cup prepared), what the heck could we do?

What does huitlacoche taste like? It’s flavor is accurately described as all of the following: earthy, woody, smoky, sweet, pungent, savory, and like sweet corn mixed with really good mushrooms. Typically, smut is made into sauces or added as a flavoring to quesadillas, but we already had other things planned for dinner. .

Hmm, what could we make that would give us and our familial hurricane refugees staying with us an adequate taste of this delicacy? Given the ingredients in the kitchen and garden, we decided to put together a new recipe: Huitlacoche soup.

Recipe: Huitlacoche Soup 

huitlacoche soup recipe, corn smut, mexican truffles

Recommended Items From This Article

  • Huitlacoche – Can’t get your hands on any huitlacoche but itching to give it a try? You can have a can or jar delivered to your door.
  • Pipicha seeds – If you like cilantro (people either love it or hate it) you’ll probably love pipicha even more. It’s like a more intense cilantro with notes of citrus included. You can buy pipicha seeds here.
  • Immersion blender – Immersion blenders make recipes like this SOOO much easier than using a food processor. We highly recommend this one.
  • The ultimate Mexican cookbook – Remember the lady we told you made huitlacoche popular in the US (Josefina Howard, chef and owner of Rosa Mexicano in NYC)? Well, she’s got an authentic Mexican cookbook that you need to get.
huitlacoche soup recipe
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Huitlacoche Soup

Prep Time: 15 minutes
Cook Time: 30 minutes
Total Time: 45 minutes
Servings: 4 small appetizer-sized cups of soup

Ingredients

  • 3/4 cup huitlacoche and corn
  • 4 cups milk
  • ½ cup diced onion
  • 1 cup diced pumpkin/squash flower
  • 4 diced garlic cloves
  • 1 diced chile pepper
  • ¼ cup colby-jack cheese
  • 2 tablespoons diced *pipicha + fresh sprigs to garnish soup *cilantro or papalo can be used as substitute
  • 2 teaspoons pink Himalayan sea salt
  • 2 tablespoons butter or bacon grease

Instructions

  1. Add butter to saucepan on medium heat. Once melted, add onions and one teaspoon salt. Stir onions until they become translucent, then add diced garlic, diced chile pepper, and corn/huitlacoche mix. Stir until garlic begins to brown.
  2. Add milk and pumpkin/squash flower. Bring to a simmer. Add diced pipicha and blend until smooth with an immersion blender. Continue to simmer for 2-3 minutes, adding up to another teaspoon of salt to taste. If you don't have an immersion blender (see link below recipe for the immersion blender we recommend), you'll want to finish cooking the soup, then blend it in a food processor before serving.
  3. Ladle/pour soup into bowls or cups. Garnish with shredded colby-jack cheese and pipicha sprigs (use cilantro as a substitute). Serve warm and enjoy the rich, earthy flavor!
Savory, earthy, delicious: a warm bowl of huitlacoche soup.

Savory, earthy, delicious: a warm bowl of huitlacoche soup.

If you’re ever lucky enough to have life give you corn smut in your corn patch, make huitlacoche soup (or call it Mexican truffle soup if you want to be extra fancy)!

KIGI,

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4 Comments

  • Reply
    Alan Bergo
    April 13, 2022 at 1:58 pm

    Ok this was a great idea. I’ve been harvesting huitlacoche with my friend who actually grows it commercially in Wisconsin, of all the places. I had about 15 pounds left over in the freezer and I’ve made this soup a few times now, only difference is I use a combo of chicken stock and milk. If you want to see some images of the fully inoculated cobs on my friends farm you should check out my article on harvesting it. The shapes are crazy and the mushrooms even grow from the tassels! So much better than canned huit!
    https://foragerchef.com/huitlacoche-harvesting-and-cooking/

    • Reply
      Aaron von Frank
      April 14, 2022 at 12:11 pm

      Thanks Alan! Enjoyed your huitlacoche article and look forward to making some of your recipes.

  • Reply
    Jessica
    September 30, 2020 at 7:12 am

    I’m about to make some huitlacoche soup and have been researching recipes. This is an interesting version that I’m excited to try. Whenever I see chile pepper (or chile powder) I’m always wondering- what kind of chile?! Spicy? Not spicy? Or what is the universal “chile” that recipes are referring to??

    • Reply
      Aaron von Frank
      September 30, 2020 at 10:58 pm

      Hi Jessica! We grow a lot of different chile pepper varieties. Usually, we don’t grow anything too terribly hot – nothing beyond Poblano range, which is likely what we used in this recipe. Sorry for the lack of specificity, and hope your huitlacoche soup turns out great!

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