Cut a slice(about 2 inches) from the brioche and leave it out for a day until the brioche is hard.
Take 3 eggs and mixed it with the 170 gr of sugar (0.375 pounds).
Add 70-80 ml Half and half (only milk works)and mixed again. Then add the vanilla extract and mix again.
In a pan put salted Butter and warm it! Grab your brioche and put it on the preparation and cook it until both sides or brown (not too much).
Warm the oven to 180 (350 Fahrenheit). Add a little bit of sugar on the top and put 2-3 minutes in the oven to cook it a little more inside.
Eat it with nothing or some jam but the old French version is only with sugar on the top.