A recipe is the most fundamental configuration element within the organization. A recipe: Is authored using Ruby, which is a programming language designed to read and behave in a predictable manner Is mostly a collection of resources, defined using patterns (resource names, attribute-value pairs, and actions); helper code is added around this using Ruby, when needed Must define everything that’s required to configure part of a system Must be stored in a cookbook May be included in another recipe May use the results of a search query and read the contents of a data bag (including an encrypted data bag) May have a dependency on one (or more) recipes Must be added to a run-list before it can be used by Chef Infra Client Is always executed in the same order as listed in a run-list YAML and JSON recipes JSON and YAML recipes let you define Chef Infra resources using a no-code syntax instead of Ruby. This feature makes Chef Infra recipes more accessible to users who prefer declarative YAML or JSON syntax over Ruby code.