Cookie / Royal Sugar Icing / Macaron Recipe

Prep Dry Ingredients

Line two baking sheets with silicone mats or parchment paper. Sift the almond flour and 1 3/4 cups powdered sugar together into a large bowl. Press through the sieve to remove any lumps; discard any large bits. Set aside.

Whip Egg Whites (French meringue)

In a clean, grease-free mixing bowl, whisk the 3 room-temperature egg whites with the 1/4 tsp cream of tartar and 1 tsp vanilla on medium speed until foamy. Gradually add the 3/4 cup granulated sugar in three additions while increasing speed to high, whipping to glossy stiff peaks (when you lift the whisk, peaks stand straight). Add gel color if using and whip briefly to incorporate.

Macaronage (folding)

Using a large spatula, fold about one-quarter of the sifted almond/powdered sugar mixture into the meringue to lighten it. Continue folding in the remaining dry mix in two additions, using a figure-8 motion and scraping the bowl sides, until the batter flows in a thick ribbon and when lifted it forms a fall that ‘melts’ back into the batter in about 10–15 seconds. The batter should be glossy and just shy of runny—test by drawing a figure-8; the surface should smooth slightly.

Pipe Shells

Transfer batter to a piping bag fitted with a round 1/2-inch (about 1 cm) tip. Pipe 1 1/4 to 1 1/2 inch rounds spaced 1 inch apart on prepared trays. Rap the trays sharply against your counter two or three times to release air bubbles. If any large bubbles remain, pop them with a toothpick.

Rest (Forming skins)

Allow the piped shells to rest at room temperature for 30–60 minutes until a light, dry skin forms on top (touch lightly — it should not stick). Rest time varies with humidity; in humid conditions use a fan or shorter rest with longer drying time in a low oven (see notes).

Bake

Preheat oven to 300°F (150°C). Bake one tray at a time in the center of the oven for 14–16 minutes (time depends on size and oven). The shells should develop 'feet' and remain a pale color. To test doneness, remove from oven and let cool 5 minutes — the shells should lift cleanly off the mat/parchment. If they stick, bake 1–2 minutes longer next time.

Cool

Cool completely on the baking sheet or rack before filling. Once cool, pair similar-sized shells for sandwiching.

Make Royal Icing

In a medium bowl, combine 2 cups sifted powdered sugar and a pinch (1/8 tsp) of salt. Add the pasteurized egg white and 1 tsp lemon juice (or water) and whisk until thick and smooth. If using corn syrup add 1 tsp and mix. The icing will be thick—test flow: when you draw a spoon through the icing the line should smooth out in about 10 seconds for flood consistency. Add tiny amounts of water (1/8 tsp at a time) if too stiff; add more powdered sugar if too thin. Add gel color if desired and mix thoroughly.

Adjust Consistency

For outline/piping details use a thicker consistency (stiff but pipeable). For flooding the surface (thin decorative layer) thin to 'flood' consistency by adding small amounts of water until the icing flows slowly and levels. Divide into separate bowls if multiple consistencies/colors are needed.

Pipe & Decorate

Fit a piping bag with a small round tip (size 1–3) for details. Use the thicker icing to pipe borders or patterns on cooled macaron shells. Flood interior areas with the thinner icing and use a toothpick to guide and remove air bubbles. Let decorated shells rest at room temperature until the icing sets (30 minutes to 2 hours depending on thickness).

Sandwiching & Filling

If using royal icing as the filling, pipe a small amount (about 1/2 tsp) onto the flat side of one shell and gently press its pair on top to form a cookie sandwich. Note: royal icing hardens to a brittle finish—use sparingly for sandwiching if you prefer a chewy center. Alternatively, prepare the optional buttercream (directions below) and use about 3/4–1 tsp per sandwich for a softer filling.

Make Quick Buttercream

Cream 1/2 cup unsalted butter at room temperature until smooth. Gradually add 1 cup sifted powdered sugar and 1/2 tsp vanilla, beating to combine. Add up to 1 tablespoon heavy cream to achieve a pipeable consistency. If filling macarons, transfer to a small piping bag and pipe about 3/4–1 tsp onto the flat side of one shell, then top with its mate and press gently to spread to the edges.

Mature (optional)

For best texture and flavor, place filled macarons in an airtight container in the refrigerator for 24 hours (called 'maturing'), then bring to room temperature before serving. This step is optional but yields a chewier interior and more balanced flavor.

If you piped royal icing decorations on top, allow them to harden fully before stacking or boxing. Store macarons in an airtight container in the refrigerator for up to 5 days or freeze up to 1 month (layer between parchment). Bring to room temperature before serving for best texture.