Preparation of Frey Patissier Light Cake Icing:
Water bath: place the bag. 8 minutes in simmering water. Knead the bag. If the frosting is too liquid, the plunge approx. 2 minutes in water bouillante. For microwave: heating the bag for 2 minutes at max. 450 W. The lightly knead without opening it. If the frosting is too liquid, replace the approx. 1 minute in the microwave. Cut at the corner, pour the liquid icing on the cold pastry and distribute the remaining amount uniformément. Laisser cool, close the bag by folding it for future use.