a couple of lemons
First peel a couple of lemons. Only peel the skin and not the pith. This is very bitter. Now spread it on the tray and let it dry at 60 degrees Celsius or in a microwave at 600 Watt for around 7 minutes. Once the peels are dry transfer them into a blender and blend them into a fine powder. Keep it dry and covered for later. Then mix the egg white with the sunflower oil, the butter, the flour and the sugar. Blend this till you have a smooth batter. Then spread it on a tuille mold and level the top with a pallet knife. Now dust a thin layer of the lemon peel powder on top and bake them at 150 degrees Celsius for around 15 minutes till baked, but not colored. Keep them dry and covered for later.