Treacle Toffee

Ingredients
• 250g (12oz) butter or margarine
• 225g (8oz) black treacle
• 450g (1lb) dark brown sugar
• 397g can condensed milk

Preparation
1. Grease a 23 x 30.5cm (9 x 12 inch) baking tin
2. Melt the butter in a non-stick pan. Add the treacle, sugar and milk.
3. Bring slowly to the boil and simmer for 35-40 minutes, stirring constantly to a temperature of 132°C (270°F), using a sugar thermometer.
4. Pour into the tin. Chill until set, turn out and break into pieces using a rolling pin or hammer.