| 1 | Note: if desired, spray tube pan or kugelhopf pan with nonstick baking spray before filling with batter and baking. |
| 2 | To cool, do not invert on bottle. |
| 3 | Instead place pan on wire rack to cool 30 minutes. |
| 4 | Turn cake out onto wire rack and cool completely. |
| 5 | In large bowl of electric mixer, let egg whites warm to room temperature, about 1 hour. |
| 6 | Measure flour; sift about 2 cups flour once on a sheet of waxed paper; fill cups lightly to overflowing; with a spatula, cut off excess to make 1 ?level cups. |
| 7 | Sift flour with salt; set aside. |
| 8 | With electric mixer at medium speed, beat egg whites until foamy. |
| 9 | Gradually, beat in ?cup of the granulated sugar, 2 tbsp at a time, beating well after each addition. |
| 10 | Continue beating until stiff peaks form when beaters are slowly raised. |
| 11 | Preheat oven to 350 degrees. |
| 12 | In small bowl of electric mixer, with the same beaters at high speed, beat egg yolks until very thick and lemon colored, about 3 minutes. |
| 13 | Do not under beat. |
| 14 | Gradually, beat in remaining 1 cup granulated sugar; continue beating until mixture is smooth. |
| 15 | At low speed, blend flour mixture and orange juice alternately into egg yolk mixture, beginning and ending with flour and guiding batter into beaters with scraper. |
| 16 | Add orange peel. |
| 17 | With whisk or rubber spatula, using under and over motion, fold yolk mixture gently into whites. |
| 18 | Pour batter into an ungreased (see note 1) 9 ?to 10" x 4 ? kugelhopf pan or 10 x 4" tube pan without removable bottom. |
| 19 | Bake 50 to 55 minutes until cake springs back when pressed with finger. |
| 20 | Invert over bottle (see note 1); cool completely. |
| 21 | Using an up and down motion, run spatula around edge of cake and tube. |
| 22 | Invert cake and shake to release; place on serving plate. |
| 23 | Sift confectioners sugar over top of cake. |
| 24 | To cut cake, use knife with serrated edge. |
| 25 | Cut gently, going back and forth with sawing motion. |
