This is the soup I made in the lighthouse on the island on Fedje. It is easy to make, and it adds color and fresh taste to otherwise grey days.
Heat the chicken stock in a medium-sized pot over medium high heat. When it starts to simmer, add carrots and boil until tender, 10 to 14 minutes.
Transfer the stock and carrots to a blender, in batches if necessary. (If pureed in batches, make sure to stir well when returning it to the pot.) Add both fresh and ground ginger, as well as cumin seeds. Purée until smooth. Remove lid and add orange juice, and butter for increased richness. Blend until mixed, and return the soup to the pot and reheat over medium temperature.
Pour into serving bowls and top off with sour cream, chives and orange zest.