Good point. I'm not doing this because it seems legally dodgy. What I can do is provide a direct link to the text recipe, where available.

Recipes are not subject to copyright unless it "is accompanied by substantial literary expression in the form of an explanation or directions" (e.g. you are clear on a conventional recipe, but not copying something like the detailed explanation of why/how various recipe choices were made such as you would see in cooks illustrated.)

Nah, ignore the dodge and do it anyway. It's the internet. You're not stealing, you're "citing". Just be sure to link to the original and most of these recipe sites will think you're doing them a favor.