3 pounds butternut squash
3 tablespoons olive oil, divided
3 teaspoons kosher salt, divided
1/8 teaspoon black pepper
1 tablespoon organic butter substitute
1 large yellow onion, chopped
3 celery stalks, chopped
1 tablespoon chopped fresh sage leaves
32 ounce container vegetable broth
2 cups water
1/2 cup non-dairy milk
Preheat oven to 400°F.
Peel and seed the squash. Cut squash into 1 inch cubes and place them on a rimmed baking sheet. Drizzle with 2 tablespoons of the oil, 2 teaspoons of the salt, and the pepper, toss to coat.
Spread in a single layer and roast for 15 minutes. Stir the squash and continue to roast until softened, about 15 minutes more.
Meanwhile, heat the butter substitute and the remaining oil in a stockpot over medium heat. Add the onion, celery, and sage and cook until softened, about 7 minutes.
Add the broth, 2 cups of water, the remaining salt, and the squash. Bring to a boil.
Reduce heat and simmer for 30 minutes.
Remove from heat.
Let cool for 10 minutes.
Working in batches, transfer the soup to a blender.
Add non-dairy milk and puree until smooth.
Return soup to the pot and warm over medium heat.
Note: To make preparation easier, use already cut-up butternut squash. Can be found in the produce section of your local supermarket.