Lemon Angel Food Supreme

LEMON ANGEL FOOD CAKE

Steps:

• Preheat the oven to 350 degrees F.
• Combine 1/2 cup of sugar with the flour and sift together 4 times. Set aside.
• Place the egg whites, salt, and cream of tartar in the bowl of an electric mixer fitted with a whisk attachment and beat on high speed until the eggs make medium-firm peaks, about 1 minute. With the mixer on medium speed, add the remaining 1 1/2 cups of sugar by sprinkling it over the beaten egg whites. Whisk for a few minutes until thick and shiny. Whisk in the vanilla and lemon zest and continue to whisk until very thick, about 1 more minute. Sift about 1/4 of the flour mixture over the egg whites and fold it into the batter with a rubber spatula. Continue adding the flour by fourths by sifting and folding until it's all incorporated.
• Pour the batter into an ungreased 10-inch tube pan, smooth the top, and bake it for 35 to 40 minutes, until it springs back to the touch. Remove the cake from the oven and invert the pan on a cooling rack until cool.

LEMON ANGEL FOOD CAKE WITH PRESERVED LEMON CURD

Steps:

• Make the cake: Heat the oven to 350 degrees and place a rack in the center.
• Sift flour and 1/3 cup/65 grams granulated sugar into a large bowl.
• In the bowl of an electric mixer, combine egg whites, salt and cream of tartar and beat with the whisk attachment on medium-high speed until medium peaks form, about 3 minutes.
• Gradually add in remaining 1 cup/200 grams granulated sugar, 1 tablespoon at a time, and beat until firm, glossy peaks form. Beat in confectioners' sugar, lemon zest, vanilla and lemon extract.
• Sift a quarter of the flour mixture over egg whites and use a rubber spatula to fold until barely combined. Repeat with remaining flour in 3 more additions.
• Scrape into an ungreased 10-inch tube pan, smooth top, and bake until cake is springy and pulls away from the pan, 35 to 40 minutes. Transfer to a wire rack to cool.
• Make the curd: In a small bowl, combine 1/4 cup/59 milliliters lemon juice and gelatin; set aside to bloom. In a large bowl, lightly beat eggs.
• In a medium bowl, combine granulated sugar, butter, remaining 1/4 cup/59 milliliters fresh lemon juice, the preserved lemon juice, the zest and the salt. Place bowl over a pot of simmering water until warm. Remove from the heat, then pour over the eggs in a thin stream, constantly whisking. Place bowl with the egg and lemon mixture over the simmering water pot and cook, stirring constantly, to 175 degrees, about 5 minutes.
• Remove from heat, stir in gelatin mixture and immediately pour through a fine strainer into a wide bowl set over ice bath, stirring until mixture is cool. Chill for 1 hour.
• Whip the cream until soft peaks form. Fold into the lemon curd and chill for another hour, until cold.
• To serve, unmold the cake. Using a serrated knife, halve the cake crosswise to create 2 layers. Dollop on some of the lemon cream to cover. Top with the cake and dollop on more lemon cream. (Remaining lemon cream will last up to a week in the refrigerator.)