Melt the milk chocolate, butter and golden syrup in a bowl in the microwave, stirring every 30 seconds. (Or melt over a pan of hot water.)
Once smooth, stir in the broken up Oreos, marshmallows and chocolate eggs.
Mix together well and smooth into a lined baking tin.
Pour over more melted chocolate and embed in more chopped up eggs to decorate. Set in the fridge overnight until set.
