Support `cookingMethod` for recipes

Is your feature request related to a problem? Please describe.
Not really, just looking for a way to easily spot the cooking method when looking through recipes.

Describe the solution you'd like
It looks like cookingMethod is a thing for the schema.org/Recipe schema:
https://schema.org/cookingMethod

I'd like to be able to have a method like deep fry or oven baked, or even combinations for like some cheesecakes, which are two things:
oven baked,refrigerated

Describe alternatives you've considered
I guess users can just use the tools field right now, or do a fuzzy search, or use keywords, but keywords are just really getting out of hand for me personally.

Regardless, this isn't a hugely pressing feature request, just a nice to have.

Thanks for all you in the community and maintainer squad do :)

Start by reading the schema.org/Recipe definition for cookingMethod and inspecting how the existing tools and keywords fields are represented in the cookbook. Define how multiple methods such as "oven baked" and "refrigerated" should be stored and shown when browsing recipes, then verify that the new field is usable without relying on keywords.