, ▁Jud d ▁mat ▁Gar de bo ' nen ▁and ▁Ster ze in . ▁ ▁Th ull , ▁who ▁had ▁studied ▁cook ery ▁at ▁the ▁E cole ▁Le ▁C ordon ▁Ble ue ▁in ▁Paris , ▁taught ▁at ▁a ▁hous ema ids ▁school ▁in ▁E sch - sur - Al z ette . ▁In ▁ 1 9 3 7 , ▁she ▁published ▁her ▁first ▁book ▁Rat geber ▁für ▁die ▁Luxemb urger ▁Haus fra u ▁beim ▁Kon serv ieren ▁der ▁N ahr ungs mittel ▁( Gu ide ▁for ▁the ▁Luxemb ourg ▁House w ife ▁on ▁Pres erving ▁Food st uff s ), ▁Luxemb ourg ' s ▁first - ever ▁cook book . ▁To ▁supp lement ▁her ▁Koch buch , ▁in ▁ 1 9 4 7 ▁she ▁published ▁D ess ert s ▁und ▁Back war en ▁( D ess ert s ▁and ▁Pas try ▁Cook ing ). ▁Th ull ▁carefully ▁typed ▁each ▁page ▁of ▁her ▁books ▁and ▁had ▁them ▁printed ▁at ▁her ▁own ▁cost . ▁Carlo ▁Sa uber , ▁who ▁has ▁updated ▁the ▁cook book ▁in ▁ 2 0 1 1 ▁for ▁modern ▁users ▁, ▁explained ▁that ▁little ▁is ▁known ▁about ▁K et ty ▁Th ull , ▁except ▁that ▁her ▁students ▁remember ▁her ▁as ▁being ▁very ▁strict . ▁She ▁never ▁married ▁and ▁had ▁no ▁children . ▁ ▁Her ▁works ▁have ▁remained ▁popular ▁in ▁Luxemb ourg , ▁where ▁they ▁are ▁still ▁used ▁for ▁their ▁authentic ▁local ▁reci pes . ▁ ▁References ▁ ▁Category : 1 9 0 5 ▁birth s ▁Category : 1 9 8 7 ▁death