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1
Preheat oven to 350u00b0. Grease and flour a 10- x 3 1/2-inch Bundt pan. Turn pan over, and tap to remove excess flour.
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2
Sift together first 3 ingredients; set aside.
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3
Cream together butter, zest, and 1 3/4 cups sugar at medium-high speed with an electric mixer until light and fluffy. Add egg yolks, 2 at a time, beating just until blended after each addition. Add vanilla, and beat to incorporate.
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4
Add flour mixture to butter mixture alternately with sour cream, beating at low speed with electric mixer after each addition, beginning and ending with flour mixture. Transfer mixture to a large mixing bowl; set aside.
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5
Beat egg whites at high speed with an electric mixer until foamy. Gradually add remaining 1/4 cup sugar, beating until stiff peaks form. Fold one-third of the egg whites into cake batter. Fold in remaining egg whites until almost incorporated; fold in cranberries. Transfer batter to prepared pan.
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6
Bake at 350u00b0 (325u00b0 if using a dark pan) for 55 to 65 minutes or until a tester inserted in center comes out clean. Cool in pan on wire rack 10 minutes.
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7
Turn cake out onto a wire rack, and place over a baking sheet. Brush cake with warm Orange Glaze. Allow glazed cake to cool completely. Spoon Orange Icing over cake, allowing icing to drip irregularly down the sides. Allow icing to set before serving cake.
