1. Peel and slice the carrots.
Cut the pumpkin into large cubes.
Sauté the vegetables in a drizzle of oil. Cover with water, bring to a boil, then simmer until tender.
2. Remove the vegetables with a slotted spoon and blend them in a blender with some cooking water (more or less depending on whether you prefer a thinner or thicker soup). Add freshly squeezed orange juice and adjust the seasoning.
3. Sprinkle with finely chopped coriander leaves and pink peppercorns just before serving.