Lemon Meringue Angel Food Cake

• 6 meringue frosting (pieces)
• 3 lemon zest (finely grated)
• 3 egg yolks
• 2 eggs
• 2 lemons
• 1 filling
• 375 gr egg whites
• 300 gr granulated sugar
• 240 gr sugar
• 130 gr sifted cake flour