Last week, Google announced that you can now send recipes to your Google Home device and ask Google Home to walk you through making the recipe without any hands.
The feature was promised to be rolled out soon and I was able to see it this Friday afternoon. When you search for recipes on mobile in search, you will see the recipe cards. The ones that support the Google Home feature will say "Send To Google Home." When you click it, it gives you a notice it has been sent and you can go forward with the recipe. The "Send To Google Home" button then changes to "Sent to Google Home."
Here are pictures:
Here is after you click send:
Here is what it looks like for recipe cards in mobile not to have the send to Google feature - the look naked:
Here is a video of how it works on Google Home:
Forum discussion at Google+.