Quick Jam-Swirl Sponge Cake
Ingredients
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The Batter:
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3 Large eggs
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A pinch of salt
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150 g (4/5 cup) Sugar
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120 ml (1/2 cup + 2 tbsp) Milk
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120 ml (1/2 cup + 1 tbsp) Vegetable oil
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2 tsp Vanilla extract
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250 g (1 cup + 2/3 cup) All-purpose flour
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15 g (3 tsp) Baking powder
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The Topping:
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150 g (approx. 1/2 cup) Jam of your choice (cherry, apricot, or strawberry work beautifully)
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Powdered sugar for dusting
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Instructions
1. Prepare Your Setup
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Preheat your oven to 350°F (180°C).
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Line a rectangular baking pan (approx. 8×11 inches) with parchment paper or grease it thoroughly with oil or butter.
2. Beat the Eggs and Sugar
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In a large mixing bowl, combine the 3 eggs, salt, and sugar.
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Using a hand mixer or whisk, beat the mixture for about 3–5 minutes until it becomes pale, thick, and doubles in volume. This step ensures the cake is light and fluffy.
3. Add the Liquids
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Pour in the milk, vegetable oil, and vanilla extract.
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Mix on low speed just until combined.
4. Sift in Dry Ingredients
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Sift the flour and baking powder into the wet mixture.
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Gently fold or whisk the batter until smooth and no flour pockets remain. Do not overmix, as this can make the cake dense.
5. Add the Jam Swirl
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Pour the batter into your prepared baking pan and smooth the top with a spatula.
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Drop small spoonfuls of jam onto the surface of the batter, spacing them out evenly.
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Use the tip of a knife or a toothpick to gently swirl the jam into the batter for a marbled effect.
6. Bake and Finish
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Bake for 30–35 minutes, or until a toothpick inserted into the center of the cake comes out clean.
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Remove from the oven and allow it to cool in the pan for 10 minutes.
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Once cooled, dust the top generously with powdered sugar before slicing into squares.
Pro Tip
If your jam is very thick, stir it in a small bowl with a teaspoon of warm water before adding it to the cake; this makes it much easier to create those beautiful swirls!