* Ingredients:
° 5 eggs, separated
° 1 cup unsalted butter, soft
° 3/4 cup sugar
° 2 tsp.Vanilla extract
° 3 1 1/2 cups all-purpose flour
Preparation:
Preheat oven to 180 ºC .
Butter a 20 10 cm loaf pan.
In a pot, whisking egg whites until stiffing . Reserving .
