Classic French Macarons

Prepare the almond flour mixture: In a food processor, combine almond flour and icing sugar. Pulse until finely ground. Sift the mixture to remove any large particles.

Make the meringue: In a clean, grease-free bowl, beat egg whites with an electric mixer until soft peaks form. Gradually add granulated sugar and continue beating until stiff, glossy peaks form.

Add color: Gently fold in the food coloring until evenly distributed.

Macaronage: Gradually add the almond flour mixture to the meringue, folding gently until just combined. The batter should flow like lava and form a ribbon when dropped from the spatula.

Pipe the macarons: Transfer the batter to a piping bag fitted with a round tip. Pipe 1.5-inch circles onto a baking sheet lined with parchment paper or a silicone mat. Tap the baking sheet firmly on the counter several times to release any air bubbles.

Rest the macarons: Let the macarons rest at room temperature for 30-60 minutes, or until a skin forms on the surface. This is crucial for developing the 'feet'.

Bake the macarons: Preheat oven to 300°F (150°C). Bake for 12-15 minutes, or until the feet have formed and the macarons are set. Let cool completely on the baking sheet before removing.

Make the buttercream filling: In a bowl, beat softened butter until light and fluffy. Gradually add powdered sugar, beating until smooth. Add vanilla extract and heavy cream, and beat until well combined.

Assemble the macarons: Match macarons of similar size. Pipe or spread buttercream filling onto the flat side of one macaron and top with another macaron. Gently press together.

Chill the macarons: Refrigerate the assembled macarons for at least 24 hours to allow the flavors to meld and the texture to improve. Bring to room temperature before serving.