Prepare the Bread Base

1. Cube the Bread: Cut your bread into 1-inch cubes. If it’s not stale, toast the cubes in the oven at 300°F (150°C) for 10 minutes.
2. Grease Muffin Tin: Lightly grease a 12-cup muffin tin or line it with paper liners.

Make the Custard

1. Mix Wet Ingredients: In a large mixing bowl, whisk together the eggs, milk, cream, brown sugar, vanilla, cinnamon, nutmeg (if using), and salt.
2. Combine Bread and Custard: Add the bread cubes to the bowl and gently toss to coat. Let the mixture sit for 5-10 minutes so the bread absorbs the custard.

Assemble the Muffins

1. Fill the Muffin Tin: Divide the soaked bread mixture evenly among the prepared muffin cups. Press gently to pack them in.
2. Add Topping: Brush the tops of each muffin with melted butter. In a small bowl, mix granulated sugar and cinnamon, then sprinkle it generously over the muffins.

Bake

1. Bake Muffins: Preheat your oven to 350°F (175°C) and bake for 20-25 minutes, or until the tops are golden and slightly crisp.
2. Cool: Allow muffins to cool in the tin for 5 minutes before transferring them to a wire rack.