Roast the grated coconut in a pan without fat until golden brown, take it out and put it on a flat plate. Mix egg, flour, sugar and white wine. Let dough rest for about 5 minutes. Chop the chocolate.
Warm the cream and melt the chocolate in it. Peel the bananas, cut them in half or in thirds, depending on their size. Pull the bananas one after the other through the batter. Heat the oil in a pot or deep fryer to approx. 170 °C.
Fry the bananas in portions. Take out the finished bananas and immediately turn them into the grated coconut. Arrange bananas and chocolate sauce and decorate with mint.