Heat a pan over medium heat
In a shallow bowl, add together the milk, eggs, and vanilla. Whisk together.
Soak a slice of bread in the egg mixture and flip, so both sides are soaked in the mixture.
Once the pan is hot, cook the bread until nicely browned on each side.
To make the bananas foster, heat the butter and brown sugar over medium heat in a skillet. Mix to create a sauce. Add the bananas and let cook until slightly thickened and sticky.
To assemble, slice each piece of brioche bread in half diagonally. Place 3 halfs on each plate and top with the bananas foster mixture. Add freshly whipped cream, if desired. Serve and eat immediately.