Rich Lemon Chiffon Pie

Lemon chiffon pie is a midcentury American classic that uses a clever trick to get its impossibly light, mousse-like texture. A cooked lemon-egg-yolk base is set with gelatin, then beaten egg whites and whipped cream get folded in just before the pie sets. The result is somewhere between a soufflé and a curd, with all the bright tart kick of fresh lemon and none of the heaviness of a traditional custard pie.

The timing on the gelatin mix is the make-or-break detail. Chill it until “partially set” (about the consistency of raw egg whites). Too cold and it locks up before you can fold in the egg whites and cream. Too warm and the airy mixtures collapse on contact and you get soup instead of chiffon.

Fold gently. Cut down through the center, sweep around the edge, lift over the top. Repeat. You’re trying to keep every bit of air you whipped into the whites and cream.

Use fresh-squeezed lemon juice. Bottled juice tastes flat and metallic in a pie this delicate.

Pro Tips

• Beat the egg whites to soft peaks, not stiff. Stiff whites are harder to fold without breaking.
• Bloom the gelatin in cold water for 5 minutes before adding to the hot mixture for an even set.
• Chill the bowl and beaters before whipping cream. Cold equipment doubles the volume.
• Refrigerate the finished pie at least 4 hours before slicing for clean cuts.

Variations

• Swap lemon for lime juice and zest for a key lime chiffon spin.
• Use a graham cracker crust instead of pastry for a different texture base.
• Top with fresh raspberries or a dusting of powdered sugar.