The wine monopoly stores around the country and the taxfree shops will have "Krekling Arctic Crowberry Frost". Subtitled "wilderness transformed to liquor".
I make this myself, but in lieu of this, buy this as a souvenir from Norway. Sweet, but definitiely the crowberry taste. A good aperitif you can serve your guests when you show photos of potholed roads, rain and sleet photos from your trip to Norway.