Follow these detailed steps to create your Sticky Caramel Bread Pudding. Each step is crafted to ensure your pudding is perfectly moist and caramelized.

Step 1: Prepare the Bread

1. Preheat your oven to 350°F (175°C).
2. Cut the loaf of bread into 1-inch cubes. Arrange the cubes on a baking sheet and toast them in the oven for about 10 minutes, or until they are lightly golden. This helps the bread absorb the custard without becoming too mushy.

Step 2: Make the Caramel Sauce

1. In a medium saucepan over medium heat, combine the sugar and water. Stir until the sugar dissolves.
2. Increase the heat and bring the mixture to a boil without stirring. Cook until the mixture turns a deep amber color.
3. Remove from heat and carefully whisk in the butter until fully melted.
4. Gradually add the heavy cream, whisking constantly until smooth. If using, stir in the sea salt.
5. Set aside to cool slightly.

Step 3: Prepare the Custard

1. In a large mixing bowl, whisk together the eggs, milk, heavy cream, sugar, vanilla extract, cinnamon, nutmeg, and salt.
2. Continue whisking until the mixture is well combined and slightly frothy.

Step 4: Assemble the Bread Pudding

1. Grease a 9×13-inch baking dish with butter or non-stick spray.
2. Place the toasted bread cubes into the dish, spreading them evenly.
3. Pour the custard mixture over the bread, pressing down gently to ensure all pieces are soaked.
4. Drizzle half of the caramel sauce over the top of the bread and custard mixture.

Step 5: Bake the Bread Pudding

1. Cover the dish with aluminum foil and let it sit for 30 minutes to allow the bread to absorb the custard.
2. Bake in the preheated oven for 25 minutes.
3. Remove the foil and bake for an additional 15-20 minutes, or until the bread pudding is set and the top is golden brown.

Step 6: Serve

1. Let the bread pudding cool slightly before serving.
2. Drizzle the remaining caramel sauce over each serving for an extra touch of sweetness.