Preheat the fryer. In a mixing bowl, sift the flour, baking powder and salt together. In a mixing bowl, whisk the eggs and sugar together. Add the melted chocolate and butter. Stir in the milk and vanilla. Slowly add the sifted flour into the egg mixture, incorporate into a soft dough. Cover the dough and chill for 2 hours. Turn the dough out onto a floured surface. Roll the dough out to 1/2-inch thick. Cut the doughnuts out, using a 2 1/2-inch doughnut cutter. Fry a couple of doughnuts at a time for 1 minute on each side. Remove the doughnuts from the fryer and drain on a paper-lined plate. Place the doughnuts on a wire rack. Drizzle the warm doughnuts with the chocolate glaze and sprinkle with the macadamia nuts. Place the doughnuts on a platter.
Yield: about 1 dozen