I think it's better to go with one recipe per hub.
Why? Well more traffic for one thing!
If you have a hub titled "Ten Turkey Recipes" then that's just one main keyword. However if you have a hub for each, such as "Stuffed Tofu Turkey", "Turkey with rice" etc, you can get ranked for ten times as many keywords, giving ten times as much chance of getting traffic.
If you have trouble filling up the word count, consider adding things like where you got the recipe or its history, variations on it, etc
True. There are some pretty badly written ones out there.
However it's possible to make a hub about one recipe and make it quite in depth. There are so many different parts of a recipe that can be talked about, especially if the ingredients aren't that common or there is a story attached to the recipe.
I think it depends...you can do one per hub if you have a main entree, appetizer or dessert with a story, technique etc....I only do multiples if a recipe is short or they can be combined, for example, Dessert Toppings, Glazes and Sauces etc...