Creating a French Toast & Preserves Casserole is simple when you follow these steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C) and grease a 9×13-inch baking dish.
2. Prepare Bread: Place the cubed bread in the greased baking dish, spreading it out evenly.
3. Make the Egg Mixture: In a large bowl, whisk together the eggs, milk, heavy cream, granulated sugar, vanilla extract, ground cinnamon, and salt until well combined.
4. Combine the Mixtures: Pour the egg mixture evenly over the cubed bread, ensuring all pieces are soaked.
5. Add Preserves: Drop spoonfuls of fruit preserves over the top of the bread mixture, gently swirling them in with a knife for an even distribution.
6. Let it Soak: Allow the casserole to sit for at least 15 minutes to soak up the liquid. For best results, refrigerate it for a few hours or overnight.
7. Bake: Place the casserole in the preheated oven and bake for 40-45 minutes, or until the top is golden brown and a knife inserted in the center comes out clean.
8. Cool: Remove from the oven and let it cool for about 5-10 minutes before serving.
9. Dust and Garnish: Dust the top with powdered sugar and add fresh berries for garnish if desired.

By following these simple steps, you will create a delicious French Toast & Preserves Casserole that is sure to delight everyone at your table.