Toffee

Grease and line a large baking tray with a sheet of greaseproof paper.

Combine the butter, sugar, and water in a large saucepan over medium heat.

Cook until the sugar dissolves, stirring from time to time.

Increase the heat and boil the toffee until it registers 150°C on a sugar thermometer.

Remove the toffee from the heat and carefully swirl in the vanilla extract.

Pour the toffee onto the prepared tray and leave it to set and cool.

Once cool, break into pieces and serve.