A deconstructed version of Zaher Hallab's quintessential sweet, based around a cashew nut parfait. You will need an espuma gun (cream canister) to make the orange blossom foam (or you can simply omit it). A deconstructed version of Zaher Hallab's quintessential sweet, based around a cashew nut parfait. You will need an espuma gun (cream canister) to make the orange blossom foam (or you can simply omit it).