Preheat oven to 350°. Combine first 4 ingredients in bowl of a heavy-duty electric stand mixer. Make a well in center of flour mixture; add oil, egg yolks, and orange juice. Beat at medium-high speed 3 to 4 minutes or until smooth. Stir in zest.
Beat egg whites and cream of tartar at medium-high speed until stiff peaks form. Gently fold into flour mixture. Spoon batter into 3 greased and floured 9-inch round cake pans.
Bake at 350° for 17 to 20 minutes or until a wooden pick inserted in center comes out clean. Cool in pans on wire racks 10 minutes; remove from pans to wire racks, and cool completely (about 1 hour).
Spread Lemon-Orange Buttercream Frosting between layers and on top and sides of cake.
@Jenn54 - i baked this cake tonight, i haven't tasted it yet, but one thing I noticed...I've never used cake flour until tonight and I'm a BIG baker, so I was very excited to try this, so i was reading the cake flour box and it said to sift the flour 1 time BEFORE Measuring, so you actual sift 2x, sift 1 x before measuring then sift it again to fine it out again. Well it's a good thing I did this because i ended up with nearly an entire 1/2 cup of extra flour, that would definately make your cake dense and heavy.
I made this the other day and found it took longer than the estimated time to prep- not to mention the expense! Lots of zesting. Found it to be tasty but really not amazing. Will just use a boxed mix of orange cake next time. Not impressed.
I made the cake and it turned out well although I would back the time down a few minutes so as not to overcook it. I also used my homemade orange marmalade in between the layers which really added to the flavor along with the wonderful icing. Will definitely make this again but also pay attention to the sifting of the cake flour twice!
Followed the directions carefully after reading the reviews. Although the cake tasted good and yes, the frosting is the best part, I wouldn't go through the trouble of making it again. It is a denser cake then the chiffon name would suggest. There are so many other recipes to try out there so that is why I wouldn't make again.
Delicious - everyone raved about it! The texture of the cake seems just right - it seems more like a "bakery cake" than "mix cake" in denseness, but tender and flavorful - and the icing complemented it perfectly!
I made this cake twice and both times came out AMAZING! Not just to me but to all my guests. It was not dry or solid like others are saying. But came out perfectly moist and the frosting was just delicious! I'm making it again tonight for a party and can't wait to dig in!