Slice the bread evenly and set aside. In a mixing bowl, whisk together eggs, milk, cocoa powder, vanilla extract, and salt until the mixture is smooth and slightly frothy. Stir in the chocolate chips or chopped chocolate until evenly distributed.
4 slices bread, 2 eggs eggs, 1/2 cup milk, 2 tablespoons cocoa powder, 1 teaspoon vanilla extract, 1/4 teaspoon salt
Dip each slice of bread into the chocolate custard mixture, ensuring both sides are fully coated. Let the excess drip off gently into the bowl.
4 slices bread
Heat a non-stick skillet or frying pan over medium heat and add 1 tablespoon of butter. Once melted and bubbling, place the coated bread slices into the pan.
2 tablespoons butter
Cook the slices for about 2-3 minutes on each side, or until golden brown and crispy around the edges. Flip gently with a spatula, and listen for a gentle sizzling sound. The surface should be caramelized and slightly firm to the touch.
Remove the French toast from the skillet and transfer to a plate. Repeat with remaining slices, adding more butter if needed. Serve warm, optionally topped with additional chocolate, syrup, or fresh fruit.