- Prepare the Baking Sheets: Line two baking sheets with parchment paper or silicone baking mats. If using parchment, you can draw 1.5-inch circles about 2 inches apart as guides, then flip the paper over so the ink/pencil won’t touch the macarons.
- Sift the Dry Ingredients: Sift together the almond flour, powdered sugar, cocoa powder, and salt into a large bowl. Discard any large pieces that won’t pass through the sieve. Set aside.
- Whip the Egg Whites: In a clean, dry bowl of a stand mixer fitted with the whisk attachment, beat the aged egg whites on medium speed until foamy. Gradually add the granulated sugar while mixing. Once all sugar is incorporated, increase the speed to medium-high and beat until stiff, glossy peaks form. The meringue should be firm and form a sharp peak when the whisk is pulled away.
- Fold the Batter: Add the dry ingredients to the meringue all at once. Using a rubber spatula, gently fold the mixture until it’s fully incorporated. Continue to fold, pressing against the sides of the bowl to deflate the batter slightly, until it flows like lava. The batter should slowly fall off the spatula in a ribbon and dissolve back into the rest of the batter within 20-30 seconds.
- Pipe the Shells: Transfer the batter to a piping bag fitted with a round tip (approximately 1/2 inch). Holding the bag perpendicular to the baking sheet, pipe 1.5-inch rounds onto the prepared baking sheets. Once all shells are piped, firmly tap the baking sheets against the counter several times to release any air bubbles.
- Rest the Shells: Let the piped shells rest at room temperature for 30-60 minutes, until they form a skin and are no longer tacky when lightly touched. This step is crucial for proper “feet” formation.
- Bake the Shells: Preheat your oven to 300°F (150°C). Bake one sheet at a time for 15-18 minutes. The shells are done when they can be gently lifted from the parchment without sticking. Allow to cool completely on the baking sheets before removing.
- Prepare the Filling: In a medium bowl, beat the softened butter until creamy. Add the Nutella, powdered sugar, and salt, beating until smooth and fluffy. Add heavy cream if desired for a lighter texture. Transfer to a piping bag fitted with a round tip.
- Assemble the Macarons: Match macaron shells of similar size. Pipe a dollop of filling onto the flat side of one shell, then sandwich with a second shell, pressing gently until the filling reaches the edges. If desired, roll the edges in chopped hazelnuts or dust with cocoa powder.
- Mature the Macarons: Place the filled macarons in an airtight container and refrigerate for at least 24 hours to “mature.” This allows the flavors to meld and the texture to develop. Bring to room temperature before serving.
Serving Suggestions:
Serve these elegant macarons with espresso, cappuccino, or a glass of dessert wine. They make beautiful additions to dessert platters and are perfect for special occasions, tea parties, or gifts.