In a shallow dish, whisk together eggs, coffee, milk, mascarpone, granulated sugar, and vanilla extract until well combined.
Dip each bread slice into the egg mixture, ensuring both sides are well coated.
Heat a non-stick skillet or griddle over medium heat and melt a little butter.
Place onto the skillet or griddle and cook for 3 - 4 minutes on each side, or until golden brown and cooked through.
Once the French toast is cooked, remove it from the skillet and transfer to serving plates.
Brew and prepare the coffee to your liking.
Top the french toast with whipped cream and dust with cocoa powder.
Serve the tiramisu French toast with mixed fresh fruit and coffee.