once it starts to thicken switch to kneading with your hands
it's even better the next day after getting to sit
keep in a sealed container as it will spread (and don't leave on carpet or fabric)
you can make super small batches (I did 1/3 cup each for the classroom and each kid took home 1 C) or super big, my daughter and I used multiple containers of glue to make a 6 C batch for a party once.
3 Ingredient Slime - Sensory Play https://ashleemarie.com/three-ingredient-slime-sensory-play/