Step 1

Place the cream, sugar, butter and vanilla essence in a medium heavy-based saucepan, stir over medium heat for 5 minutes or until well combined.

Step 2

Increase heat to high and bring to the boil. Reduce heat to low and simmer, uncovered, stirring often, for 5 minutes or until the sauce thickens slightly. Remove the pan from the heat. Set aside for 2 hours or until cooled to room temperature. Serve at room temperature.