Ingredients
Method
- Preheat oven to 325°F (163°C). Do not grease your tube pan.
- In a large bowl, sift together cake flour, 1 cup of the sugar, baking powder, and salt.
- In a separate bowl, whisk together egg yolks, orange juice, zest, oil, and vanilla extract until smooth.
- Add wet ingredients into the dry and whisk until just combined — do not overmix.
- In a clean, dry bowl, beat egg whites with cream of tartar on medium speed until soft peaks form. Gradually add the remaining ½ cup of sugar and beat until stiff, glossy peaks form.
- Gently fold ⅓ of the whipped egg whites into the batter to lighten it. Then fold in the remaining egg whites just until incorporated.
- Pour batter into an ungreased 10-inch tube pan and smooth the top. Bake for 50–55 minutes or until a toothpick inserted in the center comes out clean.
- Immediately invert the pan and let the cake cool completely upside down in the pan (about 1–2 hours). This keeps the cake from collapsing.
- Once cool, run a knife around the sides and center tube to release the cake.
- (Optional) For glaze: Whisk together powdered sugar, orange juice, and zest until smooth. Drizzle over cooled cake and let set.
Notes
Only use fresh orange juice and zest — bottled juice won’t give the same vibrant flavor.
Don’t grease the pan; the batter needs to cling to the sides as it rises.
Letting the cake cool upside down is key to keeping it tall and airy.
You can bake this in a bundt pan, but it may not rise as high.
Store at room temperature for up to 3 days or refrigerate for up to 5 days (cover well).
