In a large bowl, combine the oatmeal, pine nuts, sunflower seeds, desiccated coconut, almonds, hazelnuts, and cinnamon.
Heat the clarified butter and honey together in a large pan over medium heat.
Add the oatmeal mixture to the pan and roast over medium heat for 5 minutes, stirring constantly.
Remove from the pan. Either transfer to a bowl or shape into bars on a parchment-lined pan while still warm. Let cool to room temperature, about 15 minutes.