Magic cake is the one that looks like a trick because it kind of is: a single thin, almost milky batter goes into the oven and separates on its own into a dense base, a custardy middle and a light sponge top, no layering by hand required. It looks like hours of work and is genuinely just one bowl and a whisk.
Everything you need
- 4 eggs, whites and yolks separated
- ¾ cup (150 g) granulated sugar
- ½ cup (113 g) unsalted butter, melted
- ¾ cup (94 g) all-purpose flour
- 2 cups milk, warmed slightly
- 1 tsp vanilla extract
- 1 tbsp (8 g) powdered sugar, to dust
Weigh, don't scoop. Measuring flour by cups can overpack it and dry out your bake. Tap any ingredient to open its converter.
Method
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Heat the oven to 150°C / 300°F and line an 20 cm square tin with baking paper.
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Whisk the yolks and sugar until pale, then whisk in the melted butter and vanilla.
For this step
- ¾ cup (150 g) granulated sugar
- ½ cup (113 g) unsalted butter
- 1 tsp vanilla extract
- 1 tbsp (8 g) powdered sugar
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Whisk in the flour until smooth, then slowly whisk in the warm milk until you have a thin, almost pourable batter.
For this step
- ¾ cup (94 g) all-purpose flour
- 2 cups milk
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In a separate clean bowl, whisk the whites to soft peaks. Fold them into the batter in three additions; it will look a little lumpy at the end, don't try to fully smooth it out, that unevenness is what lets the layers form.
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Pour into the tin and bake for 45 to 50 minutes, until the top is golden and set but the cake still has a gentle wobble in the centre.
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Cool completely, then chill for at least 2 hours before slicing, so the custard layer sets. Dust with powdered sugar to serve.
For this step
- ¾ cup (150 g) granulated sugar
- 1 tbsp (8 g) powdered sugar
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Worth knowing
- The batter looking curdled and thin before baking is normal and necessary. A smooth, thick batter won't separate into layers.
- Chilling is what firms the custard middle enough to slice cleanly. Cutting it warm gives a runnier, less distinct layer.
Make it your own
- Add lemon zest to the batter for a lemon version, or swap 2 tbsp flour for cocoa powder for chocolate.
- Serve with a spoon of berry compote alongside, since the custard layer pairs well with something tart.
Storing & freezing
Fridge, covered, for 3 days. Best eaten cold or at cool room temperature; it doesn't freeze well due to the custard layer.
Frequently asked
Why does magic cake separate into layers on its own?
The very thin, egg-heavy batter is dense enough that the flour and egg solids sink while baking, while the whipped whites rise, creating a dense base, custard middle and sponge top without any layering by hand.
Why is my magic cake all one texture, no layers?
The batter was likely too thick, or the egg whites were overmixed into it and lost their separate structure. Keep the batter thin and fold the whites in gently, leaving a little unevenness.
Cooking in a different unit? Use the cups ↔ grams converter or the recipe scaler to halve or double this recipe.
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A note on cooking safely. Recipes are provided for informational purposes only and are not medical or nutritional advice. Cooking times, temperatures and quantities are suggestions: use your own judgement, and check that meat, poultry, fish and eggs are properly cooked before serving.
Consult a qualified healthcare professional before making dietary changes, particularly if you have allergies, a medical condition or specific nutritional requirements.