Crediting recipes on a food blog?
when casually blogging about food, what are the rules for crediting where recipes come from? Do I need to provide the name of the website/cookbook/ cooking tv show? the author of the cookbook and year of publication? etc?
I usually give some information about where the recipe came from (Joy of Cooking, Mom's recipe cards, epicurious website, etc), but are there stricter rules I should be following?