▁the ▁Ma ill ard ▁reaction ), ▁the ▁li ver ▁may ▁be ▁se ared ▁briefly ▁over ▁a ▁fire ▁of ▁gra pe ▁v ine ▁cli ppings ▁( s ar ments ) ▁before ▁slow - cook ing ▁in ▁a ▁b ain - mar ie ; ▁afterwards , ▁it ▁is ▁pressed ▁served ▁cold , ▁in ▁s lices . ▁ ▁Raw ▁fo ie ▁gr as ▁is ▁also ▁c ured ▁in ▁salt ▁(" c ru ▁au ▁sel "), ▁served ▁slightly ▁ch illed . ▁ ▁Str as bourg ▁pie ▁A ▁pas try ▁containing ▁fat ty ▁go ose ▁li ver ▁and ▁other ▁ing red ients ▁is ▁known ▁as ▁the ▁" Str as burg ▁pie " ▁since ▁Str as bourg ▁was ▁a ▁major ▁producer ▁of ▁fo ie ▁gr as . ▁ ▁The ▁Str as burg ▁pie ▁is ▁mentioned ▁in ▁William ▁Make pe ace ▁Th acker ay ' s ▁novel ▁Van ity ▁Fair ▁as ▁being ▁popular ▁with ▁the ▁diplom atic ▁corps . ▁ ▁In ▁Andrew ▁Lloyd ▁Web ber ' s ▁musical ▁C ats , ▁Old ▁De uter onomy ▁the ▁last ▁song , ▁" The ▁Ad - D ress ing ▁of ▁C ats ", ▁contains ▁the ▁line ▁" And ▁you ▁might ▁now ▁and ▁then ▁supply ▁Some ▁cav iar ▁or ▁Str as bourg ▁pie ". ▁ ▁Hot ▁prepar ations ▁ ▁Given ▁the ▁increased ▁international ization ▁of ▁cu is ines ▁and ▁food ▁supply , ▁fo ie ▁gr as ▁is ▁increasing ly ▁found ▁in ▁hot ▁prepar ations ▁not ▁only ▁in ▁the ▁United ▁States , ▁but ▁in ▁France ▁and ▁elsewhere . ▁D uck ▁fo ie ▁gr as ▁("