How to make Brazo de la Reina:

• Fillings: Combine egg yolks and condensed milk in a double boiler.
• Cook until thick or of spreading consistency, stirring constantly.
• Add the butter and vanilla; blend well and cool.
• Meringue: Preheat oven to 300 °F.
• Beat the egg whites and cream of tartar till soft peaks are formed.
• Add sugar gradually and continue beating until stiff but not dry. Add orange extract.
• Spread meringue on a heavily greased and wax-lined jelly roll pan.
• Bake for 20 minutes or until light brown.
• Turn onto a well-buttered piece of waxed paper and immediately spread filling.
• Roll as for jelly roll. Good for 6 to 8 persons.