Start by preheating your oven to 325°F and lining a baking sheet with parchment paper.
Add the almond paste, granulated sugar, powdered sugar, egg white, and salt to a food processor. Pulse until everything comes together into a thick, smooth paste.
Transfer the mixture to a bowl, add the almond flour, and stir until fully combined.
Pour the pine nuts into a small bowl. Scoop out heaping tablespoons of dough and roll them gently into balls. If the dough feels too soft, pop it into the fridge for 5 minutes to firm up.
Roll each dough ball in the pine nuts, lightly pressing so they stick. Place the cookies on the baking sheet, leaving some space between each one.
Gently press down on the tops to flatten slightly, then bake for 18–22 minutes, until the edges are lightly golden.
Let the cookies cool on the baking sheet for about 10 minutes, then move them to a wire rack to cool completely.