The crackers can be kept in an airtight container for 3 days or frozen for up to 1 month.
Cut the butter into 4 pieces before adding it to the food processor. The flour and butter reach the desired consistency faster.
You can substitute other salted nuts, such as pecans or walnuts for the macadamias if you like.
A Grüner Veltiner from Austria is a lively white with loads of very ripe fruit and a big hit of pepper that echoes the flavor of the crackers. Alternatively, the crunchy, peppery crackers call for a rustic, palate-cleansing red such as Chianti from Tuscany.