Preheat the oven to 180°C (356°F).
In a bowl, mix cake flour, baking powder, and salt.
In another bowl, combine sugar, eggs, and vanilla extract.
Mix the dry ingredients with the wet ingredients to make dough.
Add almonds or other desired nuts and mix.
Shape the dough into a long log and place it on a baking sheet.
Bake in the oven at 180°C (356°F) for 25 minutes.
Let cool, then slice into 1.5cm thick pieces.
Return to the oven and bake at 170°C (338°F) for another 10-15 minutes.