White chocolate mousse cake (mirror glaze)

White chocolate mousse cake

heavy cream ---- 150g

white chocolate ---- 100 g

milk --- 65 g

gelatin ---- 1 piece

egg yolk ---1

sugar ---15 g

mirror glaze

gelatin --- 10g

sugar --- 150 g

water ---80 g

corn syrup --- 120 g

concentrated milk ---100g

white chocolate -- 150 g