Prepare a cake silicon dome mold at least 4 cm deep. Pour the white chocolate mousse in and spread it on the side to cover the surface of the silicon mold.
Press in the frozen insert, blueberry compote side at the bottom. Make sure the insert does not touch the bottom of the silicon mold.
Place the chocolate sponge on top to seal off the entremet cake. Freeze for at least 12 hours or overnight.
Warm the blackcurrant fruit glaze to about 50°C (122°F). Remove the frozen entremet cake from the mold and place it on the wire rack. Spread the warm fruit glaze and use a spatula to level off the surface. Ensure a tray or plate is placed under the wire rack to catch the drippings.
Transfer the entremet to a cake board. Decorate with sliced berries and mint arranged in a pattern. Please watch the video for details.
Let the entremet set in the fridge for 3-5 hours, ensuring the cake has appropriately thawed before serving.