Break the white chocolate into small pieces so it will melt easily.
Add Sugar and water in a deep heavy-based saucepan
Let the sugar melt slowly stirring only as needed.
Shake the pan so the cooked sugar is evenly distributed
When the sugar has melted to a deep amber color
Add the cream in two batches being very careful as the hot sugar will rise and foam.
Continue to stir until the mixture settles and becomes a little thicker
Add pumpkin puree, pumpkin spice, vanilla, salt and stir well.
Remove from heat and add the white chocolate pieces
Stir till melted - Set aside for five minutes