Soup
Garnish
Optional Flavor Boosters
Preheat the oven to 420°F (216°C). Line a baking tray with parchment paper.
Add squash chunks, onion, and garlic (with peel on). Drizzle with olive oil, sprinkle with thyme, salt, and pepper, then toss to coat.
Roast for 25–30 minutes, until edges are caramelized but not burnt.
Transfer roasted vegetables to a pot. Squeeze garlic out of its peel. Add broth and simmer for 10 minutes.
Blend until smooth with an immersion blender or in batches using a countertop blender. Add ginger at this stage if desired.

Return soup to pot, stir in corn, and heat through. For added richness, stir in sage or a splash of coconut milk.
Garnish with rosemary or toppings of choice. Serve hot.