Roast: Toss squash, apples, onion, and garlic with oil, cinnamon, nutmeg, salt, and pepper. Roast at 400°F (200°C) for 25–30 minutes.
Blend: Transfer veggies to a blender, add broth, and purée until smooth.
Simmer: Pour into a pot, stir in cream, and heat gently for 5–10 minutes.
Serve: Garnish with pepitas, thyme, or a swirl of cream.