In a shallow bowl, thoroughly whisk together the eggs, milk, vanilla extract, ground cinnamon, nutmeg, sugar, and a pinch of salt until the mixture is smooth and fully combined.
Pour the crushed cornflakes onto a separate shallow plate, spreading them out for easy coating.
Preheat a large skillet or griddle over medium heat. Add 1 tablespoon of butter and let it melt, swirling it around to coat the surface evenly.
Dip each slice of brioche into the egg mixture, ensuring both sides are well coated but not overly soggy. Allow any excess egg mixture to drip off before proceeding.
Immediately press each side of the soaked bread slice into the crushed cornflakes, ensuring an even coating for that delightful crunch.
Once the skillet is hot, carefully place the coated bread slices onto the pan. Cook for approximately 3-4 minutes on each side, or until they are golden brown and have a crispy exterior. Add more butter as needed for cooking the remaining slices for optimal flavor.
After all slices are cooked, stack them neatly on a serving plate.
Serve your French toast warm, generously drizzled with maple syrup and adorned with fresh berries for a splash of color and added flavor, if desired.