In a mixing bowl, whisk together the eggs, milk (or half-and-half), sugar, vanilla extract, ground cinnamon, and a pinch of salt until frothy.

Slice the Hawaiian rolls in half, keeping them thick and pillowy.

Soak the rolls in the custard mixture for about 30 seconds per side.

Heat a skillet over medium heat and melt butter. Add the soaked rolls and cook for about 2-3 minutes until golden brown.

Serve the French toast dusted with powdered sugar and topped with syrup, berries, or whipped cream.