This is because of a quirk of copyright; in the US at least, a recipe itself is not considered copyrightable if it is a mere listing of ingredients; however, they can be covered by copyright when they have "substantial literary expression – a description, explanation, or illustration, for example – that accompanies a recipe or formula…”.

If you want some recipes that don't have all that nonsense associated, I'd recommend the BBC's Food site[0].

[0]: https://www.bbc.co.uk/food/recipes