Preheat your oven to 325°F (165°C).
Line two baking sheets with parchment paper.
This prevents cookies from sticking.
Set everything aside and gather your ingredients.
Combine almond flour and powdered sugar together.
Whisk them in a large bowl.
Add the salt and mix well.
Make sure there are no lumps.
Beat egg whites until they're frothy.
Add the almond extract to the eggs.
Pour this mixture into your dry ingredients.
Stir gently until a soft dough forms.
Scoop tablespoon-sized portions of dough.
Roll them into small balls.
Place them on your prepared baking sheets.
Leave 2 inches between each cookie.
Press sliced almonds gently on top.
Bake for 15-18 minutes until lightly golden.
The edges should be slightly firm.
The centers will look soft but set.
Don't overbake or they'll become dry.
Let cookies cool on the baking sheet.
Transfer them to a cooling rack afterward.
Dust with extra powdered sugar if desired.
Enjoy your homemade Italian treats!