A Swiss meringue may sound fancy, but it's really very simple to make. For browning the meringue, you'll need a small kitchen blowtorch (available at amazon.com). The cookies can be made up to two days ahead and stored at room temperature, and the curd can be made up to a week ahead and stored in the refrigerator. The assembled cookies can be made ahead and stored at room temperature one hour or in the refrigerator (do not cover) up to six hours. Remove from the refrigerator 30 minutes before serving.