Cold porcelain clay recipe ;-)

1 cup flour (potato or corn flour)
1 cup white glue (for wood)
2 tablespoons oil or baby oil
2 tablespoons lemon juice or vinegar

Mix everything in a Teflon pan, low heat until it comes off the pan. The mass should be silky and soft. After taking it out of the pan, you need to knead it (with hand cream on your hands so it doesn't stick) then grease the balls of the mass with olive oil or oil and put them in a tight bag. the next day the mass is ready.

My comments: don't keep the mass in the Teflon pan for too long because it gets hard and gooey, you need to stop cooking the soft mass. If you want the mass to be white, add a little acrylic paint while mixing the mass in the pan.

It hasn't fully worked out for me yet, but it's better now, before I manage to do anything I wasted three portions of flour ;-)