Method
 

1. Pre-heat oven to 170°C: 325°F: Gas 3.  

2. Butter a large ovenproof baking dish.

3. Spread the butter generously on one side of each slice of bread.

4. Line bottom and sides of the dish with buttered bread.
   Mix the milk, eggs, sugar, raisins and sultanas, vanilla, cinnamon and salt pour over bread.

5. Place a few extra pieces of buttered bread on top, press down to submerge.

6. Allow to stand for at least 30 minutes.

7. Cover, place in a bain-marie and bake for 30 minutes.
   Remove the lid and cook for a further 30 minutes until top becomes a deep-golden.