Preheat the oven to 180°C (356°F).
In a bowl, whisk together the eggs and sugar.
Sift in the flour, baking powder, and salt, then mix to form a dough.
Add almonds and vanilla extract, then combine.
Shape the dough into a log and place it on a baking pan.
Bake in the oven at 180°C for 25 minutes.
Let cool slightly, then slice into pieces about 1.5cm thick.
Return the sliced biscotti to the oven and bake for an additional 10 minutes.