* Preheat oven 370 F (190C). 
        * Butter a 9 inch (24 cm) non-stick ring form pan, and line with a disk of buttered parchment paper. 
        * Beat the egg whites until stiff. 
        * Combine gradually 1/2 cup of sugar. 
        * In a bowl put the egg yolks and the rest of the sugar. 
        * Whisk vigorously, then combine lemon rind, lemon juice, orange extract, and pinch of salt. 
        * Combine carrots, almond. Sift in the corn starch. 
        * Add part of the egg whites, and mix using a large spoon with a top to bottom movement. 
        * Repeat until all the egg whites are fully combined. 
        * Pour the batter into the pan. Level the surface with a spatula. 
        * Bake for about 35-40 minutes, or until a toothpick inserted in the cake will appear to be dry.
        
 
    
        * 1 tablespoon butter
        * 5 eggs, whites and yolks separated
        * 1 cup (180 gr) sugar
        * 1 lemon, rind grated and juiced
        * 1 teaspoon orange extract 
        pinch of salt
        * 12 oz (350 gr) tender carrots, finely grated
        * 1/2 lb (200 gr) almonds, peeled and finely grated
        * 3/4 cup (100 gr) corn starch