StikkiNikki has two locations in Stockholm, and I've only been to the one in Sodermalm. It's a stand-alone store at Gotgatan 46, Stockholm, nearby the Medborgarplatsen T-bana station.
Like its other location (a kiosk by Tegelbacken), StikkiNikki sells delicious ice cream with wonderful flavors and toppings. Tonight the salesclerk talked me into topping my chocolate ice cream with sea salt mixed into olive oil. Strangely enough, this topping worked great--Loved It!
FYI its a small shop, with seating for about a dozen people. In addition to ice cream, it offers coffee and a few other items. Prices are reasonable, with two scoops in a cup or cone costing about $5. The website is http://www.stikkinikki.com/ for more info.
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