This golden autumn harvest bisque made with a medley of butternut squash, sweet potatoes, and pumpkin, a splash of apple cider and a hint of cinnamon is the ultimate celebration of the fall harvest!
Peel and chop the butternut squash, discarding the pulp and seeds. Peel and chop the sweet potato. Peel and dice the onion. Remove the dark green leaves from the leeks. Slice the leeks in half lengthwise and rinse well between the layers. Finely chop the leeks. Tie the thyme sprigs together in a bundle and set aside.
In a large, heavy bottomed pot, heat the olive oil over medium heat. Add the onions and leeks and sprinkle with a little kosher salt. Sauté for 4 to 5 minutes until the onions have softened. Add the minced garlic and sauté for another minute until fragrant.
Add the vegetable broth and apple cider to the pot along with the butternut squash and sweet potato, thyme bundle, cinnamon stick, 1 teaspoon kosher salt, and the pepper.
Bring the soup to a boil and then reduce the heat to medium low. Partially cover the pot with a lid and simmer for 30 minutes until the vegetables are very tender. Stir in the pumpkin purée and cook for another 5 to 10 minutes. Remove the thyme bundle and cinnamon stick.
Use a blender or immersion blender to purée the soup until smooth. If using a blender, carefully transfer the soup in two or three batches and blend until very smooth. Transfer the puréed soup back into the bot then taste and check the seasoning. If you prefer the soup a little thinner, you can add a bit more vegetable broth or apple juice.
To serve, garnish with a sprinkle of cinnamon and a swirl of heavy cream and enjoy!