Cook the carrots in salted water for about 20 minutes until they are soft. Then pour off the water and puree the carrots with the crème fraîche and butter with a hand blender.
Then mix in the spices, cumin should slightly dominate.
Cut the sausage into 12 equally thick slices and fry in a pan without oil over medium to high heat for about 1 minute on each side until the fat is gone and the sausage is crispy.
Put the lukewarm mousse on the spoons and garnish with a slice of chorizo each and serve.
Tip: use a little more or less cumin depending on your taste.