In a large bowl, whisk together eggs, milk, maple syrup, salt and vanilla extract until frothy. Cut or tear bread into small pieces, about 1/2-1 inch big. Place bread pieces into milk mixture and press down to soak it all up.
Divide evenly into four 6-oz. ramekins and place ramekins on a baking sheet.
Bake for about 25 minutes, until a knife inserted into the center comes out fairly clean.