Dissolve 25g sugar in 125ml water in a saucepan. Add the contents of one sachet to
. Stir until completely dissolved. Bring the mixture to the boil and then keep it at a low
boil for 1 min. Spread the mixture evenly over the cooled tart using a soft brush. The
glaze will set in 1 hour at room temperature and in 15 minutes in the fridge.