Make It
Step 1
Preheat oven to 350° F. Grease 13 x 9-inch baking dish with butter. Arrange bread pieces in prepared dish. Set aside.
Step 2
Place dulce de leche in a medium bowl; microwave on HIGH (100%) power for 30 seconds or until easy to stir. Add milk; whisk until completely combined. Whisk in egg and cinnamon. Add bananas; stir to combine. Pour over bread, making sure to soak all pieces of bread. Move bananas if necessary to ensure they are evenly distributed. Let stand for 5 minutes.
Step 3
Bake for 15 to 20 minutes or until slightly toasty on top. Serve warm, topped with panela cheese, if desired.