The pic is just how my spaghetti looks.
Nope, no jelly. And it is creamy and very good!
That said, we use Smuckers natural creamy peanut butter which is very good all by itself - some kid's peanut butters are probably made with lard or veg shortening, the natural stuff is probably better for cooking.
A lot of countries/regions use peanuts or peanut sauce for protein - Africa, Indonesia, etc.