Sift almond flour and powdered sugar together. Set aside.
In a clean bowl, beat egg whites until foamy, then gradually add granulated sugar. Beat until stiff peaks form.
Fold in the sifted dry ingredients into the meringue until the batter flows like lava.
Add lemon extract and yellow food coloring. Mix just until incorporated.
Pipe small circles onto a parchment-lined baking sheet. Tap the sheet to release air bubbles.
Let sit at room temperature for 30–45 minutes until a skin forms on top.
Bake at 300°F (150°C) for 15–17 minutes. Let cool completely.