Banana Foster? I made those up at the culinary school i teach at, would need to melt the product which may end up clumping very bad in the end process whcih would not be good or provide a burnt taste which is a major no no. hence why banana fosters are made very simple with brown sugar, banana's, and liquids and not very many dry ingredients. You will note its mostly like ice cream, (Some include Rum), banana's, and simple cinnamon. Not much too them honestly. Adding protein could be an epic fail there.