Preheat the oven to 425 degrees F.Toss coconut oil with onions, garlic, butternut squash, and cauliflower and lay flat on a sheet pan. Roast for about 25 - 30 minutes, turning at least once, until the vegetables are tender.Add the vegetables to a blender along with the sea salt, rosemary, thyme, olive oil, and broth. Blend until smooth and serve immediately.Garnish with herbs, pepper, or a swirl of olive oil if desired.