Tangerine cookies
Based on the recipe of a mysterious old bit of paper 
Ingredients:
Zest of 2 tangerines
175 g raw almonds
100 g sugar
2 tablespoons flour
2 eggs
Preparation:
Scald the almonds, then remove the skin, let dry and finely grind. Place in a bowl and mix in the sugar and flour. Then add 1 egg yolk and 1 whole egg. Mix until you get a smooth, sticky dough.
Whisk the remaining egg white until stiff peaks with a pinch of salt. Then gently incorporate it into the mixture. Finally, put the zest of the 2 tangerines.
Using two spoons, make small and well spaced piles on a parchment paper. Bake the cookies at 175°C until golden brown or about 15-20 minutes. Carefully remove the paper and let cool on a wire rack before serving.
TiKi says:
* I have a very nice neighbor named Theresa. It was she who gave me the yellowed sheet of paper with the precious recipe of these cookies. She believes that it was her grandfather who had noted it for his wife and mother, as both of them ran a coffee shop and a small hotel at the time (around year 1900). He used to collect recipes for them, so they could make them for the tourists