This recipe got gobbled up in record time – not a trace remained

Ingredients:

1 loaf of bread (preferably slightly stale or day-old bread)
1 stick of butter (1/2 cup), melted
1 cup of brown sugar
4 eggs
1 1/2 cups of milk
1 teaspoon of vanilla
Powdered sugar, for sprinkling
Cinnamon, for sprinkling

Instructions: