BUTTERMILK SQUASH SOUP

Buttermilk Squash Soup image

Provided by Martha Stewart

Yield Makes 7 cups

Number Of Ingredients 11

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4 slices (each about 1/2 inch thick) sourdough bread (about 7 ounces), crusts removed
1 tablespoon extra-virgin olive oil
Coarse salt and freshly ground pepper
2 tablespoons unsalted butter
1 medium onion, coarsely chopped
3 garlic cloves, minced
2 pounds yellow summer squash, cut into 1/2-inch-thick rounds
1 russet potato (about 3/4 pound), peeled and cut into 1/2-inch cubes
3 1/2 cups homemade or low-sodium store-bought chicken stock, skimmed of fat
1/2 cup low-fat buttermilk
Fresh chives, finely chopped, for garnish

Steps:

Preheat oven to 350 degrees. Tear bread into 1/2-inch pieces (to measure about 1 cup). Transfer to a medium bowl; drizzle with oil. Season with salt and pepper; toss. Transfer to a rimmed baking sheet; toast bread in oven until crisp and golden brown, about 13 minutes. Let cool.
Melt butter in a large saucepan over medium heat. Add onion, garlic, squash, and potato; cook, stirring often, until vegetables begin to soften, about 5 minutes. Add 3 cups stock; bring to a boil. Reduce heat; simmer, stirring occasionally, until potato is tender, 20 to 25 minutes.
Let cool slightly. Carefully ladle soup into a blender (work in batches to avoid filling blender more than halfway); puree until smooth. Pour through a fine sieve into a clean large saucepan.
Place pan over medium-low heat. Stir in remaining 1/2 cup stock; while stirring, slowly pour in buttermilk. Heat until warm, about 5 minutes. Divide soup and reserved croutons among bowls, and garnish with chives.

Nutrition Facts : Calories 185 g, Cholesterol 10 g, Fat 7 g, Fiber 4 g, Protein 6 g, Sodium 637 g