Preheat your oven to 180°C (356°F) and prepare a 24 cm round cake pan by greasing it and dusting with flour.

Finely grind your choice of nuts in a food processor until they resemble a coarse flour.

In a mixing bowl, combine eggs and sugar, beating on medium speed for about 5 minutes until light yellow and creamy.

Gradually pour the freshly brewed strong coffee into the egg-sugar mixture, mixing on low speed.

Whisk together the ground nuts, baking powder, and salt in a separate bowl, then fold this mixture into the wet ingredients.

Pour the batter into the prepared cake pan and bake for 30-35 minutes, or until a toothpick comes out clean.

Allow the cake to cool in the pan for about 10 minutes before transferring to a wire rack for final cooling.