Step 1: Prepare the French Toast Batter

1. Whisk the Custard: In a large mixing bowl, whisk together the eggs, milk, vanilla extract, sugar, cinnamon, and salt. Whisk until the mixture is smooth and well-combined. This will be the custard for soaking the Hawaiian rolls.
2. Slice the Hawaiian Rolls: Slice the Hawaiian rolls into halves or quarters, depending on the size you prefer for each serving. The pieces should be thick enough to soak up the custard but not too thick to fall apart.

Step 2: Cook the French Toast

1. Heat the Pan: Place a large skillet or griddle on medium heat. Add 1 tablespoon of butter to the pan, allowing it to melt and coat the bottom evenly. This will help the French toast develop a golden, crispy exterior.
2. Soak the Rolls: Dip each piece of Hawaiian roll into the custard mixture. Ensure both sides are evenly coated, but do not soak the bread for too long to prevent it from becoming overly soggy.
3. Fry the French Toast: Once the bread is soaked, place it on the heated skillet. Cook each piece for about 2-3 minutes on each side, or until golden brown and crispy. Use a spatula to flip the French toast carefully.
4. Repeat the Cooking Process: Once one batch of French toast is done, remove it from the skillet and set it aside. Add more butter to the pan as needed and repeat the process with the remaining pieces.

Step 3: Assemble and Serve

1. Serve Hot: Once all the French toast pieces are cooked, transfer them to serving plates. Arrange them in an appealing way on the plate.
2. Top and Garnish: Drizzle the French toast with maple syrup, and add fresh berries, whipped cream, powdered sugar, or chopped nuts for garnish. These toppings will enhance the flavor and add a festive touch.
3. Enjoy: Serve the French toast immediately while it is still hot and crispy. Enjoy the sweet, fluffy interior and the golden, crispy exterior.