The Keywords field is intended to help search engines identify recipes to serve up to visitors who are using voice search (eg. on Google Home).
The Keywords field should not include category or cuisine information, as those have their own structured data fields. Things such as the season, holiday, or descriptors (summer, Halloween, quick, respectively) are good candidates for the Keyword field.
Keywords should be separated by commas. Multiple words that are separated by just spaces, not commas, will be treated as a single keyword (or keyphrase).
Note: At this time, any keywords that you enter will be included in the recipe card. We'll continue to include them in the recipe cards until Google says it's okay not to do so!