Line a 12 by 10 inch tin with cling film or lightly grease a silicone baking tin with butter.

Melt the chocolate, butter and golden syrup in a bowl over just simmering water. Do not stir very often.

Meanwhile crush the digestive biscuits and chop apricots if you are using them.

Once the chocolate has melted allow to cool for approx 10 minutes, then add the yogurt and stir.

Then add the biscuits, dried fruit and half the marshmallows.

Put the mixture in the tin and the remaining marshmallows on top.

Place in the fridge for at least two hours before slicing