All you need is
8 cups of flour
1 cup of baby oil
and a container to put it in.
Take off your rings and mash it all together. Make sure to really work the oil into the flour. It only takes a moment and things start forming together
That's it, now let the kids take over and have fun. I throw in some plastic cups last night but you can add so many things that can scoop, poke shapes, add dolls.
When the kiddos are done, you can bag it up in a large ziplock bag and save it for another day of play.
This sand is a great sensory craft to do with toddlers, Even my 8 year old loved playing in it.