- Preheat your oven to 300°F (150°C) and line two baking sheets with parchment paper. 
- In a bowl, sift together the almond flour, powdered sugar, and cocoa powder. Set aside. 
- In a separate bowl, beat the egg whites with a pinch of salt until foamy. Gradually add the granulated sugar while continuing to beat until stiff peaks form. This should take about 5-7 minutes. 
- Gently fold the dry ingredients into the meringue in three additions, being careful not to deflate the mixture. The batter should flow like lava and form a ribbon when lifted. 
- Transfer the batter to a piping bag fitted with a round tip. Pipe small circles (about 1.5 inches in diameter) onto the prepared baking sheets, leaving space between each macaron. 
- Tap the baking sheets firmly on the counter to release any air bubbles. Let the macarons sit at room temperature for 30-60 minutes until a skin forms on the surface. 
- Bake in the preheated oven for 15-20 minutes, rotating the sheets halfway through. The macarons are done when they have risen and formed a 'foot.' 
- Allow the macarons to cool completely on the baking sheets before gently removing them. 
- Once cooled, pair the macarons and fill them with chocolate ganache. Press them together gently.