Adapted from Bon Appétit.
Serves 10.
5 tablespoons butter
2 ½ lbs butternut squash, peeled, seeded, and cut into 1/2-inch pieces (about 6 cups)
2 cups chopped leeks (white and pale green parts only)
½ cup chopped peeled carrot
½ cup chopped celery
2 small Granny Smith apples, peeled, cored, chopped
¾ teaspoons dried thyme
½ teaspoon crumbled dried sage leaves
5 cups chicken stock or low-sodium chicken broth
1 ½ cups apple cider
2/3 cup sour cream
½ cup heavy cream
Salt and pepper, to taste
Pumpkin seeds
Melt butter in large saucepan or soup pot over medium-high heat. Add squash, leeks, carrot, and celery. Sauté until slightly softened, about 15 minutes. Mix in apples, thyme, and sage. Add stock and 1 cup of cider; bring to a boil. Reduce heat to medium-low. Cover and simmer until apples are tender, stirring occasionally, about 30 minutes. Cool slightly.
Puree soup in blender in batches or with an immersion blender. Return soup back to pan, and bring to a simmer.
In a small saucepan, boil remaining ½ cup cider until reduced by half, about five minutes. Cool. Whisk cooled cider with sour cream in a small bowl. Set aside.
When soup comes to a simmer, turn heat to low. Mix in whipping cream. Keep on the heat a few minutes until slightly thickened. Season with salt and pepper. Remove from heat. Ladle soup into bowls. Serve with cider cream and pumpkin seeds.