Preheat your oven to 200°C (390°F) and prepare a 24 cm round springform pan lined with baking paper.

In a mixing bowl, combine the eggs, sugar, vanilla extract, and a pinch of salt. Whisk until smooth and frothy.

Sift the flour and cocoa powder into the bowl with wet ingredients and gently mix.

Melt the butter and pour it into the batter, stirring until just combined.

Pour the batter into the prepared pan and bake for approximately 17 minutes.

Allow the cake to cool in the pan for about 5 minutes before removing it.