🧑🍳 Instructions:
1. Make the sponge cake:
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Preheat the oven to 180°C (350°F). Line a rectangular or square tray with baking paper.
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Separate the eggs. Beat the egg whites with a pinch of salt until foamy, then gradually add the sugar until stiff peaks form.
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Gently fold in the egg yolks and vanilla.
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Sift the flour and cocoa, then gradually incorporate into the egg mixture using a spatula.
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Pour the batter into the tray and bake for 20–25 minutes. Let it cool, then cut into squares or rectangles.
2. Make the syrup:
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Boil water with sugar until dissolved, then remove from heat.
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Add the rum essence and let it cool.
3. Make the chocolate cream:
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Heat the whipped cream until hot (do not boil), then remove from heat.
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Add the chopped chocolate and butter. Stir until smooth and creamy.
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Let it cool, then refrigerate until slightly firm. Whip slightly if needed for a fluffy texture.
4. Assemble the cake:
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Place each sponge square on a wire rack or tray.
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Soak each piece with syrup.
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Pipe or spread the chocolate cream on top of each piece.
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Pour warm chocolate glaze over the cream to coat the top.
5. Final touch (optional):
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Add a small rosette of whipped cream on top for that classic Boema look.