Freeze Nutella for 30 minutes before stuffing to prevent it from leaking out during cooking and ensure a gooey center that stays contained.

Choose thick-cut brioche or challah bread instead of standard sandwich bread—their higher egg and butter content creates superior fluffiness and golden color.

Press the bread edges firmly together after stuffing and dip quickly into the egg mixture to create a moisture barrier that prevents leakage during cooking.

Add melted butter directly to your skillet rather than mixing it into the egg custard—this prevents the bread from absorbing too much liquid and becoming soggy.

Cook on medium (not high) heat for 3-4 minutes per side to allow the interior to warm through while the exterior achieves a golden crust without burning.