Boil oats together with cloves and cardamom. Remove spices and set aside. In a bowl, whisk together part of the butter, honey, whiskey, vanilla extract, and cinnamon. Add the mashed bananas and egg and combine by hand to maintain the lumpy texture.
Continue stirring briskly by hand, combining the cooked oats, cream, sifted flour, pea protein, and bicarbonate of soda successively to obtain a sloppy batter. Let stand for 1 hr.
Pre-heat oven to 170°C/340°F. Grease a bread pan and pour the batter in in one go. Crack open and remove the seeds of the cardamom pods used in the oats. In a small frying pan, toast the seeds and coconut (alternatively, use oats or roughly-chopped almonds) in butter. While warm, pour over the top of the bread.
Bake in pre-heated oven at 170°C/340°F for approx. 1 hr. An inserted knife should come back sticky with banana sugar, but not wet or covered in batter. Allow to cool on a cooling rack for 1 hr., then transfer immediately to an airtight container to prevent drying out.