Preheat oven to 410°F (210°C)Peel and grate the carrots. Dress and bandage any wounds.
Zest the lemon. (The recipe suggests blanching the zest in boiling water for 2 minutes and then chopping it finely. My zest was already pretty finely zested so I skipped the blanching, but bravo if you go through the trouble.)
Separate the eggs. Beat the egg yolks with the sugar until it becomes ribbon-like.
Combine the ribbon sugar-yolks with the grated carrots, the ground almonds and the lemon zest in a bowl. Season with cinnamon and nutmeg if desired.
Beat the egg whites into snow.
Combine the egg whites with the rest of the filling.
Pour into the pie crust.
Bake for 35 minutes.