Preheat your oven to 350°F (175°C) for even baking.
Line a baking sheet with parchment paper to prevent sticking.
Beat the egg whites until frothy, about 1-2 minutes. Add lemon juice and salt, and beat until soft peaks form.
In another bowl, mix together almond meal and blanched almond flour. Gradually add sugar and stir until combined.
Gently fold the dry mixture into the beaten egg whites without deflating them too much.
Using a cookie scoop or spoon, drop rounded tablespoons of dough onto the prepared baking sheet and press a raw almond on each cookie.
Bake for 15-20 minutes until tops are lightly golden and crisp outside, chewy inside.
Cool on the baking sheet for 5 minutes, then transfer to a wire rack to cool completely.