In a large pot, warm the grapeseed oil over medium-high heat. Add the carrots, leeks, garlic, sea salt and pepper. Mix well, reduce the heat to medium and let cook 5-6 minutes. Bring the heat back to medium-high heat and add the vegetable broth. Bring to a boil, reduce the heat and let simmer until the carrots are tender, about 6-7 minutes. Remove from the heat, let cool and transfer to a high-speed blender. Add the coconut cream and blend until a smooth consistency is achieved. Remove to a serving bowl or a pot and add the tarragon, while stirring gently. Serve garnished with more fresh tarragon. Bon appétit!