Makes 18 Bars
Method
Line a 23x30cm/9x12in traybake tin with cling film.
Add the butter, sugar and golden syrup to a large saucepan and stir over a medium heat until melted. Pour into a large bowl, stir in all the remaining ingredients until well combined.
Put the mixture into the prepared tin and spread with the back of a spoon into an even layer. Transfer to the fridge to chill, uncovered, for about 2 hours, or until firm.
Remove from the traybake tin and cut into 18 even-sized bars. Keep in an airtight container until needed.