Peel and cut the butternut squash into 1-2” cubes. Peel and cut the apple into 2-3” cubes. Place in a steamer and steam for 15-20 minutes or until soft enough to mash with a fork.
Remove from steamer and place in a high-speed blender. Add the coconut milk, cinnamon, sea salt, and cayenne. Blend on high for 30 seconds. Scrape down sides of blender. Blend for another 30 seconds to 1 minute or until soup is creamy.
Remove from blender, pour into bowls, garnish with a sprig of fresh rosemary, and serve.
Store leftovers in a covered glass container in the fridge for up to 5 days.