Preheat oven to 350°F and line a small baking tray with parchment paper
Cut the neck off butternut squash and reserve.
Cut the body of the butternut squash lengthwise, and scrape the seeds out
Brush cut sides with 1 tablespoon of olive oil, sprinkle with salt & pepper, and place sage sprig in each cavity.
Place cut side down on the baking tray and roast for approximately 1 hour (or until the flesh feels soft when pierced with a fork).
Remove from oven, take out sage, and let cool. Scoop the flesh out into a small bowl and set aside.
Peel the neck portion of the butternut squash and cut into cubes (about ½” in size)
In a heavy-bottomed pot, heat the remaining olive oil on medium/high heat, and add sliced onions, garlic, and shallots. Sauté until translucent and soft (about 2 minutes)
Add the chopped squash, sliced carrots, and leeks, and let cook for 3 minutes, stirring occasionally.
Place parsley, thyme, sage, and bay leaves on a square of cheesecloth and tie with kitchen string
Add the honey and 7 cups of stock to the pot along with the cheesecloth herb packet.
Simmer on low for about 35 mins (or when squash feels soft when pierced with a fork)
Add the reserved flesh of the roasted squash to the pot
Place an immersion blender into the pot and pulse the liquid and softened vegetables until smooth.
Adjust seasoning to your liking by adding more salt and/or pepper.
Thin the soup out by adding ½ cup of stock at a time until desired consistency is reached.
If you wish, garnish with chopped chives and a dollop of sour cream