Preheat oven to 350°. Generously butter a 3 quart rectangular baking dish. Spread bread cubes in the prepared baking dish. Sprinkle with chocolate pieces and walnuts.
In a large bowl, combine eggs, milk, sugar, and vanilla. Pour evenly over bread mixture. Mix thoroughly to coat bread pieces and press down gently with the back of a spoon.
Bake for 50 – 60 minutes, or until a knife inserted near the center comes out clean. To prevent overbrowning, cover loosely with foil for the last 5 – 10 minutes.
Scoop into bowls and serve with Fat Toad Farm Goat’s Milk Caramel.