Preheat the oven to 170°C (top and bottom, without convection). Prepare a 24 cm springform pan: line the bottom with parchment paper and lightly grease the sides with butter (if using). Trim the paper on the bottom to fit the shape of the base. Place the rack in the middle position of the oven.
Description
A light, aromatic sponge cake prepared without baking powder — it rises thanks to carefully beaten eggs and a gentle water bath technique. Inspired by the classic sponge cake, but in the 'Sweet Blog' style — with velvety cream and a fresh-tart raspberry compote. As a result, you will get a cake with a golden, thin crust and a fluffy, springy interior that pairs wonderfully with the white creamy mass and juicy raspberries. Perfect for parties, tea with friends, or as an impressive dessert for special occasions; it looks elegant, and the taste is delicate, slightly lemony, and very fresh.
Składniki (14)
- Egg 6 szt.
- Sugar (for the dough) 200 g
- Wheat flour 150 g
- Cornstarch 30 g
- Grated lemon zest 1 szt.
- Vanilla extract 5 g
- 30% heavy cream 400 ml
- Frozen raspberries (for compote) 300 g
- Sugar (for compote) 50 g
- Powdered sugar 20 g
- 🌿 Przyprawy
- Salt 0.0 szczypt
- ✨ Opcjonalne
- Butter (for greasing the pan) 20 g
- Rum (optional for the compote) 10 ml
- Fresh raspberries (for decoration) 100 g
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Preparation steps
Preparation
Dough
Separate the egg whites from the yolks. The easiest way to do this is by using two bowls: crack the eggshell in the middle, transfer the contents between the halves of the shell, allowing the egg white to flow into one bowl while keeping the yolk in the shell. Pour the yolks into a separate, dry bowl. Make sure that the yolk does not contaminate the egg whites — even a little bit of yolk will make whipping difficult.
In a large, heatproof bowl, place all 360 g of eggs (whole) and 200 g of sugar. Set the bowl over a pot of gently simmering water (double boiler): the bottom of the bowl should not touch the surface of the water. Whisk continuously for 4–6 minutes until the mixture is pleasantly warm (38–40°C) and the sugar dissolves — check a few crystals by rubbing the mixture between your fingers. The goal is to achieve a warm, but not hot, mixture that whips more easily.
Transfer the warm mixture of eggs and sugar to a stand mixer or use a hand mixer. Beat on the highest speed for 8–12 minutes, until the mixture is light, very fluffy, and reaches the so-called 'ribbon stage' — lifting the whisk, the mixture will slowly flow down, creating wide ribbons on the surface that hold for a moment.
Add the grated lemon zest (5 g) and vanilla extract (5 g) to the whipped mixture. Briefly mix on the lowest speed or gently with a spoon, just to distribute the flavor — do not reduce the volume of the mixture.
Sift together 150 g of wheat flour and 30 g of corn starch at least twice into a separate bowl — sifting will aerate the flour and remove lumps. Divide the sifted flour into three parts.
Add the first portion of flour (1/3) to the whipped mixture. Folding technique: scoop a large spoon or spatula of the mixture from the bottom of the bowl, drag it over the surface of the flour, and gently fold the flour in, making motions from bottom to top. Repeat until the flour is almost incorporated. Repeat with the next two portions. Do not mix vigorously — the goal is to preserve the air bubbles.
Gently pour the prepared batter into the prepared springform pan. Smooth the surface with a spatula, then lightly tap the pan on the counter 2–3 times to release the largest air bubbles — do not hit hard to avoid damaging the structure.
Baking
Place the pan on the middle rack of the oven and bake at 170°C for 30–35 minutes. After 25 minutes, check every 3–4 minutes: the surface should be golden, and a toothpick inserted in the center should come out dry or with a few small crumbs. The sponge cake should not be overbaked — it should gently spring back when pressed with a finger.
Cooling
Remove the sponge cake and immediately turn the pan upside down onto a rack (use the legs of the pan or place an inverted bowl underneath). After about 10 minutes, gently detach the sides of the springform and the paper from the bottom. Leave the sponge cake to cool completely, preferably upside down — this will prevent the crown of the cake from sinking.
Raspberry compote
In a heavy-bottomed pot, place 300 g of frozen raspberries, 50 g of sugar, and 30 ml of water. Heat over medium heat, stirring until the fruit thaws and releases its juice — gently cook for 6–8 minutes until the mixture reduces and thickens slightly. If you want a smooth sauce, strain the compote through a sieve; if you prefer whole fruit, leave it as is and set aside to cool. Finally, add 10 ml of rum (optional) and mix.
Dough
Chill the bowl and the mixer attachments in the fridge for 10–15 minutes. Pour 400 ml of chilled heavy cream into the bowl and beat on medium speed until soft peaks form. When the cream begins to thicken, gradually add 20 g of powdered sugar and continue to beat until the cream forms stable but still creamy peaks — do not overbeat, as the cream will start to separate and turn into butter.
Assembling
Cut the cooled sponge cake horizontally into two equal layers using a long serrated knife. To achieve an even cut, insert 3–4 toothpicks vertically into the sponge cake at the height where you want to cut, and slice along the line marked by the toothpicks, making gentle sawing motions.
Gently soak the bottom layer of the sponge cake with 2–3 tablespoons of warm or chilled syrup from the compote using a spoon (do not pour, just lightly brush/try). Spread half of the whipped cream evenly over the soaked layer, and then add 2–3 tablespoons of raspberry compote (distribute the fruits evenly). Cover with the second layer of sponge cake and press down lightly.
Decoration
Cover the top and sides of the cake with the remaining whipped cream in an even layer. Decorate with fresh raspberries (about 100 g) to create a ring or loose mounds, and you can sprinkle a little sifted powdered sugar just before serving.
Resting and Serving
Place the cake in the refrigerator for at least 2 hours, preferably 3-4, so that the cream stabilizes and the flavors meld. Before cutting, use a long, sharp knife dipped in hot water and wiped dry with a cloth between cuts — this will ensure clean slices.
Fun Fact
A sponge cake without baking powder relies on aerating the eggs — a technique known since the 18th century, when pastry chefs depended on whipped eggs instead of chemical leaveners. The traditional sponge cake gets its name from the Italian "biscotto" (twice baked), referring to the way it was baked in old ovens.
Best for
Tips
Serve chilled, cut into equal pieces, preferably with a cup of hot tea or delicate coffee. To enhance the flavor, serve additional raspberry sauce in a sauceboat. The cream and fruits can also be replaced with a light lemon curd for contrast.
Store in the refrigerator covered for up to 48 hours. Do not freeze the finished cake with whipped cream — the structure of the cream will be ruined after thawing. The sponge cake (without cream) can be baked in advance and stored wrapped in plastic for up to 2 days at room temperature, and then used for assembly.
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