Peel bananas and place on foil. Melt butter and combine with juice, coconut liqueur, brown sugar, pour over bananas and seal foil tightly. BBQ until bananas are soft and liquid has caramelised.
Whisk egg till fluffy, add flour, milk, sugar, oil, baking powder and vanilla bean whisking till smooth. Rest 10 minutes. Lightly oil flat grill, pour batter in rounds and cook till bubbles form and pop and edges crisp. Turn and cook till golden brown.
Stack pancakes and banana alternately topping with caramel sauce ,toasted coconut and pecans. Dust with icing sugar.