I have witness it so many times that he is so fixated towards to that fleece blanket that he begins to massage or kneading it. I was intrigue with the behaviour that I google it here
Kneading is sometimes colloquially referred to as “making biscuits,” because the motion resembles a baker kneading dough. It is almost always done on a soft, pliable surface like a pillow, a comforter, another cat or kitten, or even your lap. Often cat kneading is accompanied by contented purring, and sometimes even by drooling as the cat relaxes its jaw. It’s not uncommon for a cat to be in an almost trance-like state as it kneads with a steady, rhythmic motion.
For me I call it pussy massage... just for the fun of it! 😻 If only, I could put him to work.
My video is at DLive