Google recently launched Recipe View and while it's not quite perfect yet, it seems like it will be a nice way to search. You simply search for a food, ingredient or holiday and then click "Recipes" on the left side of the page. This limits your search to only recipe sites so you won't search for hamburgers and get an article about hamburgers or a restaurant site. Once you've got your list of recipes, you can limit by number of calories or preparation time. I also like that you can limit by ingredient, so if I want to make a birthday cake for a friend who hates coconut, I can limit my search to cakes without coconut. One thing to be aware of, especially if you run a food blog (or like food blog recipes), is that you need special coding on your site to make sure you're listed in Recipe View. You can find instructions here.