A true macaron should have a foundation of almonds – never coconut – and be sandwiched with just the right amount of filling, usually a flavoured cream or ganache. It should have a glossy, domed top, and a thin crisp shell which yields to a soft interior when you bite into it.
Old eggwhites work best and give a more elastic result. If you don’t have these to hand, leave your eggwhites out at room temperature overnight for similar effect.
Once you’ve piped the mixture, tap the tray firmly on your benchtop to settle the mixture and knock any air bubbles out.
The trick to obtaining the signature gloss and crust of the macaron is the standing time, which allows a thin skin to form before baking. Exactly how long this takes is dependent on atmospheric conditions – temperature and humidity. Don’t be tempted to rush this step; allow between four and five hours. To check the crust, touch the macarons lightly – no mixture should stick to your fingertip.
1.Process icing sugar and almond meal in a food processor until finely ground, triple-sift into a large bowl and set aside. Whisk 90gm eggwhite in an electric mixer until soft peaks form (1-2 minutes). Add caster sugar, a tablespoon at a time, whisking continuously until incorporated and mixture is thick and glossy (2-3 minutes), then add food colouring. Stir in almond mixture in batches until incorporated and mixture slowly slides down sides of bowl when bowl is tilted. Add remaining eggwhite to loosen mixture, spoon into a piping bag with a 1cm plain nozzle, pipe 3cm-diameter rounds of mixture onto heavy baking-paper-lined oven trays, stand until a crust begins to form (4-5 hours).
2.Preheat oven to 140C. Bake macarons until firm but not coloured, swapping trays halfway through cooking (10-12 minutes), set aside, cool completely on trays.
3.Meanwhile, for white chocolate and raspberry ganache, bring cream just to the boil in a small saucepan. Remove from heat, add chocolate, stand until melted (5 minutes), stir until smooth and glossy. Refrigerate until firm yet still pliable (45 minutes-1 hour) then stir until smooth. Add raspberries, stir to form a ripple effect, then spoon a teaspoon of ganache onto half the macarons. Sandwich with remaining macarons and refrigerate until set. Macarons will keep for 1-2 days refrigerated in an airtight container.
If fresh raspberries are unavailable, substitute defrosted frozen raspberries.