Ingredients
Equipment
Method
- Lay a dish towel over a large cutting board. Snap the shucked ears of corn in half. Stand each half on end (flat side down to stabilize) and cut the kernels off. Reserve the cobs. Fold up the dish towel and transfer the kernels to a bowl.
- Put 5 cups of water in a Dutch oven that will fit all the corn cobs. Using the back of a paring or other knife, scrape the remaining pulp and milky juice from each cob half directly into the water. Then add the cobs to the pot. Put the pot over high heat, bring to a boil, reduce to a simmer, cover partially, and cook for 30 minutes. Meanwhile, set a strainer over a large glass measure or bowl in the sink.
- Remove the pot of corn from the heat. Remove and discard cobs and pour the liquid through the strainer into a bowl or glass measure. You should have about 4 cups. (Measure out and set aside 4 cups for later.)
- In a large (5- to 6-quart) Dutch oven (I like enameled cast iron) or other large soup pot, heat the olive oil over medium-low heat. Add the bacon and cook, stirring, until crisp, about 10 to 12 minutes. Using a slotted spoon, transfer the bacon to paper towel–lined plates.
- Add the butter, leeks (lift them out of the water with your hands so that some water still clings to them), and 1 teaspoon salt. Cover and cook, stirring occasionally, until the leeks are translucent, 6 to 8 minutes. Uncover and continue cooking, stirring occasionally, until the leeks are very soft, shrunken, and starting to brown, another 10 to 12 minutes.
- Add the garlic and either coriander, cumin, or a combination of both. Stir for about 30 seconds until the mixture becomes fragrant.
- Add the tomatoes (and any accumulated juices), thyme, Parmigiano-Reggiano rind, 1 teaspoon salt, and black pepper. Cover partially and cook, stirring occasionally, until the tomato-leek mixture has reduced and thickened and turned a brick-red color, 18 to 20 minutes.
- Add the corn broth to the pot. Bring to a boil, reduce to a simmer, and cook, stirring occasionally (and scraping the bottom of the pan with a spatula or wooden spoon), for 5 to 7 minutes. Add the corn kernels and cook for 2 minutes more.
- Remove the pot from the heat, remove the Parmigiano-Reggiano rind, and stir in the balsamic vinegar. Taste and season with salt or more vinegar if desired.
- Portion the soup into wide, deep bowls, garnish each with some of the bacon, a generous amount of Parmigiano, and some of the basil (if using). Serve right away. Eat with really good bread.
Notes
My Dutch oven is a true workhorse in the kitchen, and I rely on it weekly for a variety of dishes. It’s both durable and surprisingly affordable.
