Marbled Toffee Shortbread

Taken from 'Baking and Desserts' cookbook - Helpful Hint : Make sure the toffee filling turns a rich golden colour or it will not set. Cook for 3-4 minutes if necessary to obtain a good colour. Take care that the mixture does not burn. If preferred, place the ingredients in a glass bowl and heat in the microwave on a medium setting in 30-second bursts until the sugar has melted, stir well after each burst of cooking. Once melted, heat on high for 2-4 minutes again in 30-seconds bursts until golden.

• Ready In: 1 hr
• Yields: 12 fingers

Ingredients

• 175  g butter
• 75  g caster sugar
• 175  g plain flour
• 25  g cocoa powder
• 75  g semolina (fine)
• 50  g butter
• 50  g brown sugar (soft, light)
• 397  g  condensed milk (can)
• 75  g dark chocolate (dark)
• 75  g  milk chocolate
• 75  g white chocolate

Directions

1. Preheat the oven to 180C/350F/Gas 4, 10 minutes before baking. Oil and line a 20.5 cm square cake tin with nonstick baking parchment. Cream the 175g butter and caster sugar until light and fluffy then sift in the flour and cocoa powder. Add the semolina and mix together to form a soft dough. Press into the base of the prepared tin. Prick all over with a fork, then bake in the preheated oven for 25 minutes. Leave to cool.
2. To make the toffee filling, gently heat the 50 g butter, brown sugar and condensed milk together until the sugar has dissolved. Bring to the boil, then simmer for 5 minutes, stirring constantly. Leave for 1 minute then spread over the shortbread and leave to cool.
3. For the topping, place the different chocolates in separate heatproof bowls and melt one at a time, set over a saucepan of almost boiling water. Drop spoonfuls of each on top of the toffee and tilt the tin to cover evenly. Swirl with a knife for a marbled effect.
4. Leave the chocolate to cool. When just set mark into fingers using a sharp knife. Leave for at least 1 hour to harden before cutting into fingers.