1. In a shallow bowl or dish, whisk together the eggs, milk, vanilla extract, cinnamon, brown sugar, and salt until well combined.
2. Heat a large skillet or griddle over medium heat and add a bit of butter or oil to coat the surface.
3. Dip each half of the Hawaiian roll into the egg mixture, allowing it to soak for a few seconds on both sides. Be sure not to oversoak to prevent sogginess.
4. Place the soaked rolls onto the hot skillet, cooking for about 3 minutes on each side, or until they are golden brown and cooked through.
5. Transfer the French toast to a plate and keep warm while you cook the remaining slices.
6. Serve warm with a drizzle of maple syrup or a dusting of powdered sugar. Enjoy with a side of fresh fruit or your favorite breakfast accompaniments.

When making French toast, I find that using a cast-iron skillet gives the slices a lovely, even browning. It reminds me of the days I spent with my grandmother in the kitchen, learning the importance of using the right tools for the best results.