Excellent interface and human factors
This app is perfectly simplistic. What I like most about it is that the recipes are more unique meals that I have wanted to learn for a long time now. You just spin the wheel to the meal you want. Click its cell containing the photo and name. Then you will see a very clear step-by-step instruction. I think the designers wanted to keep this as elegant as possible, so you wont get a lot of additional information. In a way, I like that just as a challenge. But I dont think this would work for the completely clueless (me about six months ago :-S).
Anyway.. this is a suggestion: First, your interface is brilliant. Dont change that much at all. I can see issues if you ever expand the categories of dishes in the top horizontal chooser. But other than that, the sliding tiles is most elegant and perfectly intuitive. But what if you also did this with video, as well as with dynamically updating content? For example, you could release a basic app for free. Then sell subscriptions to dynamic content like lessons with videos, or just more unique dishes people might want to learn.
Doc Strangelove about
The Photo Cookbook