Preheat oven to 350 degrees F (180°C). Grease a shallow casserole baking dish, around 8x11'' or similar size.

Batter: In a large bowl add half and half, butter, vanilla, sugar and salt. Microwave for about 1 minute, just until butter has melted. Add the beaten eggs and cinnamon to the milk mixture then whisk well to combine.

Add bread to bowl and stir to coat. Pour mixture into prepared pan.

Bake for 30 to 45 minutes, or until custard is set but still a little wobbly and edges of bread have lightly browned.

Serve warm or at room temperature. Drizzle with vanilla cream sauce, if desired.