Chocolate Protein Doughnuts

Everyday should be filled with doughnuts, especially when they are chocolate protein ones - melt in your mouth delicious!   Method   Preheat oven to 180/160°c fan and lightly grease a doughnut tin. To a bowl, add all the doughnut ingredients and mix until a thick batter forms. Spoon evenly between the 6 doughnut rings and place in a preheated oven for 15 minutes. Allow to cool for 5 minutes before transferring to a wire rack to cool completely. Meanwhile make the frosting by mixing together all the frosting ingredients in a small bowl. Once the doughnuts are cooled, spread the frosting over the top and add any extra decorations you desire like chocolate chips.