As a seasoned baker, I've perfected this classic French macaron batter for reliable results every time. In a large bowl, sift together 125 g ground almonds and 210 g icing sugar. In a separate clean bowl, whip the whites from 3 eggs (exactly 100 g—weigh for precision) until foamy. Gradually add 10 g sugar and beat to stiff peaks. Incorporate another 10 g icing sugar and whip once more. For vibrant color, stir in a touch of gel food coloring. Gently fold in the almond mixture with a spatula using the macaronage technique—lift and turn until the batter flows like lava. Spoon into a piping bag and set aside.
Pipe 1.5-inch mounds onto parchment-lined baking sheets, spacing them 1 inch apart. A macaron mat simplifies perfect shapes. Firmly tap the tray on the counter to flatten peaks and release air bubbles. Rest uncovered for 30 minutes until a skin forms and they no longer stick to your finger—this creates the signature crisp shell. Preheat oven to 160°C and bake for 10 minutes until feet rise and tops are set.
Let macarons cool fully on the trays before gently peeling from parchment. Match shells by size, pipe or spread your favorite filling—such as fruit jam, silky chocolate ganache, or buttercream—and sandwich. Refrigerate assembled macarons for at least 2 hours (ideally 24) to develop flavor and texture. Enjoy these bakery-quality treats!