Recipes - Recipe Module
I'm in the process of transferring over my recipes from 'blog' content in The Cookbook to the format provided by the Recipe Module. This module utilizes the Schema.org Module which I already had running on my site. [Looking up the url of one of my recipes on Google's Rich Snippet testing tool or in Google Recipes - will show you what data is machine readable.]
My biggest qualm with the recipe module? Out of the box the output looks like someone threw up on my site. I ended up copying and pasting the recipe.css content to my custom.css file in my theme layer and edited the page using firebug/firefox to get the layout to my satisfaction. The image is actually a schema.org configured image added as a field - so I used my already established method of creating 'round images' to give the image round edges for a smoother look.
The default picture for recipes was found on Stock.xchng and is 'forklove' by stuntcrazy.
Example recipe - Lemon Coconut Squares