Ingredients
2 tablespoons extra-virgin olive oil
1 large leek, white and light-green parts only, chopped and washed well (2 cups)
1 celery stalk, chopped
5 ears corn, kernels shucked and cobs reserved
1 medium Yukon Gold potato, peeled and chopped
1/4 cup creme fraiche
Coarse salt and freshly ground pepper
2 tablespoons snipped fresh chives, for serving
Oyster crackers, for serving
Preparation
Heat oil in a large pot over medium. Add leek and celery and cook, stirring, until softened, about 6 minutes. Add corn kernels, reserved cobs, potato, and 6 cups water. Bring to a boil, then reduce to a simmer and cook until vegetables are very tender, about 30 minutes.
Remove and discard cobs. Working in batches (do not fill jar more than halfway), puree soup in a blender until smooth. Strain through a fine-mesh sieve, pressing on solids to remove as much liquid as possible; discard solids. Whisk in creme fraiche; season with salt and pepper. Thin soup to desired consistency with more water, if needed. Sprinkle with chives and serve, with crackers.
