Buttercup Squash Soup with Lemongrass

Coconut milk adds a creamy flavor to this Asian-inspired fall soup.


  • 5 cups vegetable Stock
  • 1 medium buttercup squash, about 3½ pounds, cut in half, seeds removed
  • 1 tablespoon vegetable oil or olive oil
  • 1 large yellow onion, chopped, about 2 cups
  • salt and pepper
  • 1 tablespoon minced garlic
  • 3 stalks lemongrass, tough tops and outer leaves removed, finely chopped, about 1/3 cup
  • 1/4 cup grated fresh ginger
  • 1 or 2 kefir lime leaves
  • 1 14-ounce can unsweetened coconut milk
  • 10 to 15 Thai basil leaves, bundled and cut in thin ribbons, about 2 Tbsp.


Preheat the oven to 400º F.  Make the stock and keep it warm over low heat.  Place the squash, cut side down, in a baking dish with a little water. Cover and roast until tender, 35 to 40 minutes. When the squash is cool enough to handle, scoop it out of the skin. You should have about 4 cups.  Heat the oil in a soup pot and add the onions, ½ teaspoon salt, and a pinch of pepper and cook until they begin to soften, about 3 minutes. Add the garlic, lemongrass, and ginger and cook for 2 minutes. Add the squash, the stock, and the lime leaf and bring to a boil. Lower the heat and simmer, uncovered, about 30 minutes.  Remove the lime leaf and puree the squash mixture in a blender until smooth. Pass through a food mill and return to the pot over medium-low heat. Add the coconut milk and cook for 5 to 10 minutes. Adjust the seasoning with salt and pepper to taste. Garnish each serving with Thai basil.


Everyday Greens, Annie Somerville