Macarons taste their best at room temperature or slightly chilled – the buttercream is soft, the ganache is creamy, and the shells are nice and chewy! Macarons will keep well for up to 4 days after purchase, though they do need a little special care! To preserve freshness, plastic wrap the bakery box or transfer to an airtight container. Take them out of the refrigerator about 30 minutes before serving to enjoy them at room temperature.