Edible white oil can be added.

Putting too much Taylor powder in homemade fondant crust will cause the fondant to become hard and tough. You can add edible white oil to make it softer.

Taylor powder is hydroxyethyl cellulose, a white or light yellow, odorless, non-toxic fibrous or powdery solid, composed of alkaline cellulose and ethylene oxide (or chlorohydrin) Prepared through etherification reaction, it is a non-ionic soluble cellulose ether.