Leftover bread, condensed milk, evaporated milk, whole milk, eggs, sugar.
Tear bread into small pieces and soak in whole milk.
Add eggs, sugar, and blend until smooth and well combined.
Pour mixture into greased pan, bake at 350°F until firm.
Mix three milks, pour evenly over warm baked bread base.
Refrigerate soaked cake for at least two hours for absorption.
Add whipped cream, cinnamon, and enjoy your tres leches!