If you do a search for "something that might be food" the clicky for "Recipes" should show in the sidebar (left side in my browser).

If Google doesn't recognize your search term as an edible (as for my search for "possum") the box where it would be may not show it, but there's a "More" button at the bottom of the box. If you click "More" the box should expand to show it.

If your search term is for something that couldn't possibly be eaten (perhaps like and ingredient for some English "semifoods?" - e.g. marmite?) the Recipes button may not show up no matter what you do, I suppose.

Also, although the announcement didn't mention any browser compatibility factors, it came up immediately in IE, but I can't vouch for other browsers.

In my browser, the box is directly under the big "Google" logo, and the top item is "Everything."

And for marmite you do have to click "more" at the bottom of the box to get the "Recipes filter, implying that it's no more edible than possum I guess."

John