Italian liquor maker Davide Campari-Milano is making a sweeping push for its luxe-but-lagging Grand Marnier brand, hoping to attract American consumers who may only know the idiosyncratic drink fr ...

Mix 100ml/3½fl oz of the reserved sugar syrup with the Grand Marnier and set aside. Reserve any remaining sugar syrup for glazing. For the crème pâtissière, measure the milk into a medium pan ...