01 - Spread 1 tablespoon unsalted butter evenly onto one side of each brioche bread slice.
02 - Place two slices of brioche, buttered side down, on a clean surface.
03 - Spread 2 tablespoons Nutella over the unbuttered side of each bread slice.
04 - Distribute half of the sliced Brie evenly atop the Nutella on each prepared bread piece.
05 - Cover with the remaining bread slices, positioning the buttered side outward.
06 - Warm a nonstick skillet over medium-low heat.
07 - Transfer the assembled sandwiches to the skillet. Gently press with a spatula and cook each side for 3 to 4 minutes or until deep golden brown and cheese has melted.
08 - Remove from pan, allow to cool briefly, then cut and serve warm.