Start by slicing the Hawaiian rolls in half horizontally. Arrange them in a single layer on a large cutting board.

In a large bowl, whisk together the eggs, whole milk, vanilla extract, ground cinnamon, salt, and nutmeg until well-combined.

Preheat a griddle or large skillet over medium heat and add a tablespoon of unsalted butter.

Carefully dip each half of the sliced rolls into the custard mixture, then place them on the griddle.

Cook until golden brown, about 2-3 minutes per side, flipping gently with a spatula.

Remove the French toast from the griddle and keep warm. Dust with sifted confectioners’ sugar and drizzle with maple syrup before serving.