A cookbook directive is a set of instructions that provide guidance on how to prepare a dish. The three crossword solutions for the term 'cookbook directive' are 'BASTE, ' 'ADD, ' and 'STIR.' Basting is a cooking technique that involves brushing or spooning liquid over food while it is cooking in order to keep it moist and ADD flavor. Adding is the act of combining two or more ingredients together. Stirring is the process of mixing ingredients together using a circular motion.