On a baking sheet, lay out carrots, sweet potato, onion, garlic. Lightly drizzle with avocado oil or olive oil. Bake veggies until the carrots pierce soft with a fork about 30-35 minutes.
In a soup pot, transfer roasted carrots, onion, garlic. Add spices and broth. Bring to boil, then let simmer about 5 minutes.
Add coconut milk. Simmer another 5 minutes. Remove from heat.
In batches, blend soup in a high-speed blender to puree. Be careful not to burn yourself.