Prepare the ribs by removing the membrane from the back if still intact by using a small knife to lift it away. Pull to remove.
Crush the peppercorns, mustard seeds, and dried juniper berries using a mortar and pestle or spice grinder. Be sure not to over-grind. You want a coarse consistency. Add the Arctic juniper berry salts and red pepper flakes.
In a separate bowl, combine the crushed spices with the brown sugar, olive oil, vinegar, and garlic to make a paste.
Rub the paste onto both sides of the ribs. Wrap the seasoned ribs with plastic and refrigerate for several hours, or preferably overnight.
Preheat electric smoker to 225° Fahrenheit for 15 minutes.
Place the ribs bone-side-down on the smoker grates and close the lid.
Smoke for four to five hours. Try the pinch test for doneness by giving the meat between two bones a squeeze with your thumb and forefinger. If it gives easily, the ribs are ready. If it's still too firm, cook the ribs for a bit longer.
Remove the ribs from the smoker and wrap in foil until ready to serve.