Mix the ground lamb together with the dried porcini mushrooms, salt, pepper, lemon zest, thyme, shallot, and finely chopped mushrooms. Shape the mixture into round spears and brown them in a frying pan. Bake the spears in the oven at gas mark 3.5 (175 °C) until done (approx. 8 minutes). Mix Snøfrisk® together with light sour cream. Then season with salt, pepper, and finely chopped thyme.