Fluffy Lemon Sponge Cake with Tangy Lemon Glaze
This lemon sponge cake is the one to make when you want a dessert that feels light and bright but still satisfies a sweet craving. It’s airy, gently lemony, and finished with a thin, crackly glaze that brings just the right amount of tang.
You can mix the batter with a hand mixer and a bowl, no butter or dairy needed, so it comes together fast from pantry staples.
Why This Sponge Cake Works
I keep coming back to this cake because the texture is exactly what a sponge should be: tall, soft, and full of tiny air pockets. The lift comes entirely from well-whipped eggs, so every bite feels delicate.
The lemon comes through in two ways: zest in the batter for that aromatic floral note, and a sharp lemon glaze poured over the top while the cake is still warm. That glaze soaks into the surface just a little and sets into a sugary crust that cracks under your fork.
Because there’s no butter or oil, the crumb stays bouncy and light, and it doesn’t feel heavy even after a big slice. It’s the kind of cake that disappears fast at a brunch table.
Ingredients
- 5 large eggs, separated, at room temperature: cold eggs won’t whip up as much volume.
- 1 cup (200g) granulated sugar: divided into two 1/2 cup portions.
- 1 cup (120g) all-purpose flour: spooned and leveled, not scooped.
- 2 tablespoons lemon zest: from about 2 lemons, packed.
- 2 tablespoons fresh lemon juice: for the batter.
- 1/4 teaspoon cream of tartar: helps the egg whites hold their structure, but you can skip it.
- 1/4 teaspoon fine sea salt: just enough to sharpen the lemon.
- For the glaze: 1 cup (120g) powdered sugar, 2 to 3 tablespoons fresh lemon juice, and a pinch of lemon zest for speckles.
Variations / Substitutions
- Make it orange: swap lemon zest and juice for orange, and reduce the sugar in the batter by a tablespoon so the glaze doesn’t feel too sweet.
- Use superfine sugar: if you have it, it dissolves faster into the egg whites, but regular granulated works fine.
- Skip the glaze: the cake is still lovely with just a dusting of powdered sugar and a pile of fresh raspberries.
- For a vanilla-scented version, try our Classic Vanilla Sponge Cake.
How to Make Lemon Sponge Cake
Step 1: Whip the Egg Whites
Preheat the oven to 350°F (175°C) and grease a 9-inch round cake pan, then line the bottom with parchment. Place the 5 egg whites, the 1/4 teaspoon cream of tartar, and the 1/4 teaspoon salt in a large mixing bowl. Beat on medium speed until foamy, about 1 minute, then gradually add 1/2 cup of the sugar and increase to high speed. Whip until the whites hold stiff, glossy peaks that stand straight up when you lift the beaters, another 3 to 4 minutes.
The meringue should look smooth and marshmallow-like, with no liquid pooling at the bottom. If the peaks curl over, keep beating for another minute and test again.
Step 2: Mix the Yolk Batter
In a separate bowl, beat the 5 egg yolks with the remaining 1/2 cup sugar and the 2 tablespoons lemon zest on high speed until the mixture is thick and pale yellow, about 3 minutes. It should fall from the beaters in a ribbon that holds its shape for a few seconds before sinking back. Beat in the 2 tablespoons lemon juice just until combined.
At this point the batter will smell intensely of lemon, and the yolks will have nearly tripled in volume. That air is what keeps the final cake soft, so don’t rush this step.
Step 3: Fold the Batter Together
Sift half of the 1 cup flour over the yolk mixture and fold gently with a rubber spatula until just a few streaks of flour remain. Add half of the whipped egg whites and fold until barely combined, then sift in the remaining flour and fold again. Last, fold in the remaining egg whites, working in broad, sweeping strokes and turning the bowl as you go. Stop the second no white streaks or pockets of flour are visible.
The batter will look voluminous and cloud-like. Over-mixing at this stage will deflate it, so fold just until everything comes together and no more.
Step 4: Bake the Cake
Scrape the batter into the prepared pan and smooth the top gently. Bake on the center rack for 25 to 30 minutes, until the top springs back when pressed lightly and a toothpick inserted in the center comes out clean. The surface will be deep golden and the edges will just start to pull away from the sides.
The cake will rise noticeably in the oven and then settle slightly as it cools; that’s normal for a sponge. Let it cool in the pan for 10 minutes before turning it out onto a wire rack.
Step 5: Glaze and Serve
While the cake is still warm, whisk the 1 cup powdered sugar with 2 tablespoons lemon juice until smooth. The glaze should be thick but pourable, so add the remaining tablespoon of juice only if it seems too stiff. Set the cake on a serving plate and spoon the glaze over the top, letting it drip down the sides. Scatter a little extra lemon zest over the wet glaze if you like, then let it set for about 15 minutes before slicing.
Serve the slices as soon as the glaze is firm and crackly. The inside will be soft and pale gold, with a thin, sugary crust on top that catches the light.
Tips for a Perfect Sponge
- Room-temperature egg whites whip faster and reach more volume, so let the eggs sit out for 30 minutes before you start.
- When folding, cut through the center of the bowl, scrape along the bottom, and lift. Turning the bowl a quarter turn each stroke helps keep the air in.
- A standard 9-inch metal pan gives the best even rise. Dark or nonstick pans can cause the edges to set too fast. Glass pans may need an extra 5 minutes.
- Bake times by pan: use a light-colored metal pan for the times below, and check 2 minutes early if your oven runs hot.
| Pan Size | Material | Bake Time |
|---|---|---|
| 9-inch round | metal | 25-30 mins |
| 8-inch round | metal | 30-35 mins |
| loaf pan (9×5) | metal | 40-45 mins |
| 12-cup muffin tin | metal | 15-18 mins |
Keeping the Sponge Cake Fresh
- Room temperature: store the glazed cake under a cake dome or loose foil at room temperature for up to 2 days. The glaze will soften slightly but still taste great.
- Refrigerate: wrap well and refrigerate for up to 5 days. The cold firms up the crumb, so let slices sit out for 10 minutes before eating.
- Freeze: freeze unglazed cake layers wrapped tightly in plastic and then foil for up to a month. Thaw, then glaze and serve.
What to Serve with Lemon Sponge Cake
A tumble of fresh raspberries or sliced strawberries adds a juicy contrast to the fluffy cake, and a dollop of lightly sweetened whipped cream balances the sharp lemon glaze. If you’re serving it after dinner, a scoop of vanilla ice cream melting over a warm slice feels extra special.
For a bigger spread, this cake also works well next to a bowl of lemon curd and a pile of shortbread cookies.
Frequently Asked Questions
Can I use gluten-free flour?
Yes, a 1-to-1 gluten-free flour blend that contains xanthan gum will work, though the cake will be slightly more delicate. Spoon and level it the same way.
Why did my cake sink in the middle?
Usually that means the egg whites were under-whipped or the batter was folded too roughly. Make sure the meringue reaches stiff peaks and fold with a light hand until no white streaks remain.
Can I make this cake in a loaf pan?
Yes, the loaf pan timing is in the table above. The bake will be a little longer because the batter is deeper, so use a toothpick to test doneness.
How do I know when the cake is done without a toothpick?
Press the center gently with your fingertip; it should spring back immediately. If it leaves a dent, give it another 3 to 5 minutes.
Lemon Sponge Cake Recipe
Ingredients
Method
- Preheat oven to 350°F (175°C). Grease a 9-inch round cake pan and line with parchment.
- Whip egg whites, cream of tartar, and salt until foamy. Gradually add 1/2 cup sugar and beat to stiff, glossy peaks.
- In another bowl, beat egg yolks, remaining 1/2 cup sugar, and lemon zest until thick and pale. Beat in 2 tablespoons lemon juice.
- Sift half the flour over yolk mixture, fold, then add half the whites and fold. Repeat with remaining flour and whites, folding just until combined.
- Scrape into pan, smooth top, and bake 25-30 minutes until golden and springy. Cool in pan 10 minutes, then turn out onto a rack.
- Whisk powdered sugar with 2-3 tablespoons lemon juice for glaze. Spoon over warm cake, scatter extra zest, and let set 15 minutes before slicing.
Notes
