Make these homemade ladyfingers with just four simple ingredients for a light, airy small batch of classic sponge cookies perfect for tiramisu or desserts for one.
Preheat the oven to 400°F (200°C). Line a small baking sheet with parchment paper.
Separate the egg, placing the white in one bowl and the yolk in another.
Beat the egg white with an electric mixer until foamy. Gradually add ½ tablespoon of sugar and continue beating until stiff, glossy peaks form.
In a separate bowl, whisk the egg yolk with the remaining sugar until pale and slightly thickened.
Gently fold half of the whipped egg white into the yolk mixture. Sift in the flour and baking powder and fold until just combined.
Fold in the remaining egg white carefully to keep the batter light and airy.
Transfer the batter to a piping bag or a plastic bag with the corner snipped off. Pipe 3 inch strips onto the prepared baking sheet, spacing them about 1 inch apart.
Bake for 7 to 8 minutes, until lightly golden and set on top.
Remove from the oven and let cool completely on the baking sheet before using.
Notes
Keep the Egg Whites Clean: Even a small drop of yolk can prevent egg whites from whipping properly. Use a clean, dry bowl for best results.
Whip to Stiff Peaks: The egg whites should hold their shape and stand straight up when the beaters are lifted. Underwhipped whites will cause flat ladyfingers.
Fold Gently: Use a spatula and fold slowly to avoid deflating the batter. Keeping the air in the mixture is what creates light, airy sponge fingers.
Pipe Even Strips: Pipe uniform 3 inch lines so they bake evenly. Uneven sizes may brown at different rates.
Watch the Bake Time: Ladyfingers bake quickly. Remove them when lightly golden and set on top. Overbaking can make them dry.