Spread half of the chocolate spread over each side of the bread slices then arrange over the base of your pot. Top with half of the banana slices and pecans.
Mix together the custard ingredients then pour over the bread, ensuring each piece is equally soaked through. Dot over the remaining chocolate spread and butter then sprinkle with sugar. Squish everything down with the back of a spoon to ensure the bread is sitting evenly in the custard. Cook on high for 2 hours.