IN a Dutch oven or large saucepan, melt the coconut oil over medium-high heat. Add the onion, ginger, garlic, jalapeño, squash, curry powder, and red pepper flakes.
COVER and cook, stirring frequently, until the onion is translucent, about 10 minutes.
ADD the broth. Cover and simmer until the squash is very tender, about 15 minutes.
BLEND the soup with an immersion blender (or use an upright blender for a smoother consistency). Stir in the coconut milk. Keep warm.