Beat eggs until they are light, frothy and evenly colored.
Add in milk and vanilla essence and mix well.
Dip a slice of bread into mixture making sure both sides are evenly soaked and place the bread slices in the greased baking dish. It is okay to overlap the bread slices. Repeat the process with the remaining bread slices. Pour the remaining batter on top.
Cover the baking dish and refrigerate it overnight.
When you are ready to make French Toast next morning, preheat the oven to 375 F degrees.Remove the cover from the baking dish after taking it out from the refrigerator.
Sprinkle the bread slices with brown sugar and melted butter or ghee.
Bake the dish for 25 minutes and broil it for a minute or two if you like the bread to be crusty.