I was really hoping you were going to start a new thread. I was wondering how to contact you to ask?!
How would you feel if he didn't reach out to you on your birthday? What do you feel is right? I think Jeff made such a good point when he said that you need to do enough so he can figure it out on his own but not make him bolt. I think you have been doing a marvelous job so far, as he asked you for that recipe. He didn't have to do that and also showed that he thought of you in a positive way in his mind i.e. need to make some nice food, T is a great cook and would give me a scrummy recipe and I feel like I am on friendly enough terms to ask her.
They say a the way to a mans heart is through his stomach, is there a way you can build on his association of you and good food/ good cooking? Just an idea. What ideas did you have for reaching out? A meet up, an email, a phone call? I think he is responsive at the moment but unsure and taking it slow.