These cookies are almost like little cakes and do require a madeleine pan, notable by its shell indentations. This recipe uses a whole orange, peel and all, to add a zesty kick.
Preheat oven to 350°F (175°C). Grease and flour a madeleine pan, tapping out excess flour.
Roughly chop the whole orange, removing any seeds, and place in a small saucepot. Cover the orange with water and simmer until almost all the liquid has evaporat