How to Freeze MacaronsStorage
Macarons are notoriously difficult to make, and so it really does pay to make them ahead of time and finish them off when needed. Freezing them is a great way of being prepared and it is so easy to do.
After you have baked the shells, let them cool then wrap them and the baking sheet/tray in cling film and freeze.
When you need them, let them defrost for 30-40 minutes at which point you can fill them as desired.
They should last in the freezer for up to 3 months (that's if they last long enough).