There are some recurring questions about basic cooking skills, like this one. This question was closed and Aaronut provided a number of related questions. So, why don't we put a generic 'cooking basics' or 'cooking techniques' somewhere?
This is what tags are for. They have tag wikis, and they have FAQs. People can also ignore tags, so they don't see the same basic questions getting bumped over and over again whenever some tiny bit of new information is added.
For those concerned about an influx of beginner questions, you'll need to: (a) be diligent in placing that tag on appropriate questions, without overdoing it, and (b) create and maintain the tag wiki (which should be more than just links to questions, as that's already covered by other features).
Personally, I don't think we're closing so many questions as duplicates that it's actually something we need to worry about yet. I think we have maybe one or two dupes a week, and maybe one or two "learning how to cook" dupes every few months. That's well within our moderation capacity to handle; the only (slight) hurdle is that often these questions seem to overwhelm common sense, and people will go "YES! I can answer that!" and rush to post their answers instead of voting to close as a dupe. But, that's what moderators are for.
Anyway, anybody can suggest edits now, including retags and tag wikis, so take the bull by the horns. We rarely reject new tag wikis, unless they're terrible (e.g. Wikipedia copypasta).
We have provided some additional guidance at the blog:
Most of the time, you should be asking yourself “How can I improve this post so that community wiki isn’t needed?” Community wiki is like a cheese knife: it is a specialized tool to be used sparingly, and only in very specific circumstances.