Even those these require a Madeleine tray, I thought I'd post the recipe because it's so delicious. You can purchase your own tray here for under $15, and it's worth it because these unique treats certainly do impress! They are best eaten the day they are made and I would recommend that you have all your ingredients organized and ready to use before you start baking because the recipe requires continuous beating.
3/4 tsp vanilla
generous pinch of salt
1/3 cup of caster sugar
1/2 cup plain flour
1 tablespoon of finely grated lemon rind
icing sugar for dusting decoration
Preheat your oven to 190 degrees (fan-forced). Melt butter and cool to room temperature. In a bowl beat eggs, vanilla and salt at high speed until light. Beating constantly, gradually add sugar; continue beating at high speed until mixture is thick and pale and ribbons form in the bowl when beaters are lifted (eg. 5 minutes). Sift flour into egg mixture 1/3 at a time, gently golding after each addition. Add lemon rind and pour melted butter around edge of batter. Quickly but gently fold butter into batter. Spoon batter into prepared tray; batter will mound slightly above the tops. Bake for 14 to 17 minutes or until golden. These cook quickly so keep a close eye on them. Use a knife to loosen from the tray, but let cool for around 10 minutes beforehand. Sprinkle with icing sugar and enjoy.