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["Beat egg yolks on high speed for 4 minutes, until thick and light colored.", "Gradually beat in half of the sugar, one tbsp at a time, until completely dissolved.", "Stir in orange peel.", "Beat egg whites on high speed until soft peaks form (beaters must be clean and dry).", "Beat in remaining sugar, one tbsp at a time, until stiff peaks form.", "Delicately fold egg whites into yolks, a little bit at a time.", "Sitr nuts, bread crumbs and baking powder.", "Gently fold it, 1/3 at the time, into egg mixture, just until combined.", "Divide batter evenly into two 9"" x 1-1/2"" round baking pans (lightly greased and floured).", "Bake at 325 F for 30, until toothpick inserted in center comes out clean.", "(Cakes may have slight dip in center.)", "Cool in pans on wire rack 15 minutes.", "Loosen edges; gently remove cakes and let cool completely on rack.", "TO ASSEMBLE: Invert cake on cake platter.", "Drizzle with half of Frangelico.", "Spread 1/2 cup of Butter Frosting.", "Invert other cake on frosted one.", "Drizzle with remaning Frangelico and spread with 1/2 cup Butter Frosting.", "Cover sides with remaining frosting.", "Lightly sprinkle top with sifted cocoa powder and garnish with whole hazelnuts.", "Cover and chill 2 hours.", "Let stand at room temperature 20 minutes before serving.", "BUTTER FROSTING: Beat butter until fluffy.", "Gradually add 2 1/2 cup sugar, beating until combined.", "Slowly beat Frangelico and juice.", "Gradually beat rest of sugar.", "If necessary beat in 1 tsp at a time of milk to reach spreading consistency."]
