Chestnut-Cardamom Macarons with Caramelized Chestnut Filling

What Makes This Special

This macaron recipe uses aquafaba for a fully dairy-free and egg-free structure, incorporates freshly ground cardamom as the defining aromatic, and fills each shell with caramelized chestnut paste, leveraging autumnal ingredients and a caramelization technique specific to the season.

Ingredients

Macarons require precision; almond flour forms the structure, aquafaba provides meringue, cardamom defines the aroma. The chestnut filling uses caramelization for depth and maple for complexity. All ingredients are dairy-free.

For the Shells

• 150 g blanched almond flour: base structure, must be finely ground and sifted.
• 150 g icing sugar: sweetness, increases tenderness of shell.
• 110 g aquafaba: meringue substitute; reduce to 90 g for stability.
• 150 g caster sugar: cooked for Italian meringue.
• 37 g water: dissolves sugar.
• 1/4 tsp cream of tartar: acid, stabilizes aquafaba foam.
• 2 g ground cardamom: core flavor, essential.
• gel food coloring: warm tones, optional, disperse in aquafaba or batter.

For the Caramelized Chestnut Cardamom Filling

• 120 g cooked chestnuts: main filling, roasted flavor.
• 80 g caster sugar: caramel base.
• 30 g maple syrup: adds sweetness, autumnal note.
• 1/2 tsp ground cardamom: identifies the filling, do not omit.
• 30 ml sunflower oil: dairy-free richness.
• 1/2 tsp fine salt: balances sweetness, defines flavor.

Instructions

Step 1: Prepare and Reduce Aquafaba

Simmer aquafaba in a small saucepan over medium-low heat until reduced to 90 g (from 110 g). Cool completely. This step concentrates proteins, making a stable meringue.

Step 2: Sift Almond and Icing Sugar with Cardamom

Sift almond flour, icing sugar, and 2 g ground cardamom into a large bowl. Sifting ensures a smooth shell and even distribution of cardamom. Discard large almond pieces.

Step 3: Make Italian Meringue (Aquafaba)

Place 45 g cooled aquafaba and cream of tartar into stand mixer. Begin whisking on medium speed. Simultaneously, boil caster sugar (150 g) and water (37 g) in saucepan to 118°C. Pour syrup in a thin stream into aquafaba while whisking on high. Continue whisking until stiff peaks form (8-10 min). Meringue should be glossy and hold a peak when the whisk is lifted.

Step 4: Macaronage (Mixing Batter)

Mix remaining 45 g aquafaba into sifted dry mixture to form a thick paste (mass). Fold in gel coloring at this stage for even color. Fold one-third of meringue into almond paste to loosen. Add the rest and fold with a spatula, scraping around the bowl and cutting through the center, until batter flows in thick ribbons and a figure-8 can be drawn without breaking. Under-mixing leads to lumpy, cracked shells; over-mixing means flat, spread shells.

Step 5: Pipe and Rest the Shells

Transfer batter to a piping bag fitted with a 10 mm round tip. Pipe 3.5 cm rounds onto baking trays lined with parchment or silicone mats, spacing 3 cm apart. Tap trays firmly to release air bubbles. Pop visible bubbles with a toothpick. Rest trays at room temperature (18-22°C) for 45-90 minutes until a matte skin forms and batter does not stick to your finger. This step is critical for the signature feet.

Step 6: Bake the Macarons

Bake, one tray at a time, at 125°C (fan off) for 18-22 minutes. Rotate tray halfway. Shells are done when they lift cleanly from the parchment and have solidified feet. Cool shells completely on the tray, then transfer to a wire rack.

Step 7: Caramelize Chestnuts

Pulse chestnuts in a food processor to a coarse crumb. In a heavy pan, melt 80 g caster sugar over medium heat until amber. Quickly add chestnuts and salt; stir continuously for 2 minutes. The sugar will seize, then melt again as you stir. Add maple syrup and sunflower oil, continue stirring over low heat until mixture thickens and all sugar is dissolved, 3-5 minutes. Blend to a smooth, thick paste in food processor. Cool completely.

Step 8: Fill and Age

Pair shells by size. Pipe or spoon chestnut-cardamom paste onto half the shells, then sandwich. Rest assembled macarons in a sealed container for at least 24 hours at 4°C. This allows moisture transfer, softening the interior for correct texture.

Pro Tips

• Sift almond flour and icing sugar thoroughly for a smooth finish; grainy flour will cause lumpy shells.
• Ensure aquafaba is fully reduced and chilled before whipping. Warm or watery aquafaba will collapse.
• Use a sugar thermometer. Undercooked syrup = weak meringue; overcooked syrup = dry shells.

Troubleshooting

Cracked shells? Batter was under-mixed, or skin was not fully set before baking. Rest longer and tap out air.

No feet? Over-mixed batter, or oven too cool. Watch the macaronage and calibrate your oven.

Hollow shells? Over-whipped meringue or baked too hot. Whip meringue only to stiff peaks, not dry.

Variations

• Replace maple syrup in the filling with dark honey for a sharper flavor profile.
• Add a small amount of citrus zest to the filling for brightness.
• Swap out chestnuts for roasted pumpkin seed paste for a nutty, green version.

Storage

Store assembled macarons in an airtight container in the refrigerator for up to 5 days. Shells alone can be frozen (well-wrapped) for up to 1 month. Do not freeze filled macarons with this filling; texture suffers. Bring to room temperature before serving.