Grapefruit Chiffon Cake

Chiffon cake splits the difference between a butter cake and an angel food, and this grapefruit version leans into that lightness with six separated eggs and fresh grapefruit juice and peel in both the batter and the glaze. The flavor is unmistakably citrus: tart, bright, and a little bitter in the best way.

The method follows classic chiffon technique. Dry ingredients go into a well, oil, yolks, and grapefruit juice fill the center, and you beat until smooth. That yolk-and-oil base is stiff, almost like a thick paste. Separately, egg whites get whipped with cream of tartar to stiff peaks, then the heavy batter gets folded in gently, a thin stream at a time.

That folding step is where the cake succeeds or fails. Too heavy-handed and you deflate the whites, losing the height and airiness that make chiffon cake special. The batter should look streaky at first and become uniform only at the very end.

Chef Tips

• Use room-temperature eggs. Cold whites don’t whip as high, and you need maximum volume for a tall chiffon.
• The tube pan must be ungreased. Chiffon cake clings to the sides as it rises and needs that grip to hold its height. A greased pan means a collapsed cake.
• Invert the pan immediately after baking and let it cool completely upside down. Gravity keeps the cake stretched to its full height as it sets.
• The cake should spring back when lightly touched. If your finger leaves a dent, it needs more time.

Variations

• Use fresh orange or Meyer lemon juice and zest for a different citrus chiffon.
• Add a tablespoon of poppy seeds to the batter for a grapefruit poppy seed version.
• Skip the glaze and dust with powdered sugar for a simpler presentation.