01 - Preheat oven to 350°F. Grease a 9x13-inch baking dish with butter or cooking spray.
02 - Spread bread cubes evenly in prepared dish. Arrange 3 sliced bananas over the bread.
03 - Whisk eggs, milk, cream, granulated sugar, vanilla, cinnamon, and salt in large bowl until fully blended and sugar dissolves.
04 - Pour custard evenly over bread and bananas. Press bread down gently to absorb liquid. Let stand 15 minutes.
05 - Bake 45-50 minutes until golden brown and set but slightly wobbly in center. Remove from oven and cool slightly.
06 - Melt butter in skillet over medium heat. Add brown sugar and cinnamon, stirring constantly until sugar dissolves and mixture bubbles.
07 - Add sliced bananas to skillet. Cook 1-2 minutes until softened but not mushy.
08 - Carefully pour in rum (remove pan from heat if cooking with open flame). Return to heat and simmer 1 minute. Stir in vanilla and salt.
09 - Serve warm bread pudding topped with generous spoonfuls of Bananas Foster sauce.