Freda R. Lavine, Recipes Tried and True — Pies (1922)
“ Line pie plate with pastry dough or pie crust and bake light brown. Fill with the following mixture: Cook in double boiler one cup of water, with lemon skins to extract the juice; add rind and juice; beat yolks with sugar and add to pot. Wet cornstarch with cold water. Add to mixture with butter. When quite thick allow to cool slightly and add beaten whites. Pour all in baked pie crust and brown under the flame for a few minutes. ”
