Bata Bata no Mi in One Piece

As the fruit hasn't yet been shown in the anime, we don't know a lot about its appearance.

This devil fruit allows the user to control Butter. The control that the user has over Butter is limitless. This Butter is very sticky and adhesive. When it is in a half liquidy state, it can immobilize an opponent by tying it around their hands and body.

This devil fruit has no weaknesses other than the standard devil fruit weakness that other devil fruit users have, i.e. that they cannot swim.

Gazette is seen using the power of the devil fruit in battle. She uses it to immobilize her enemies, letting her family members attack them as they please. She can even use telekinesis to control blobs of butter and uses them as restraints to hold down her enemies.

Q. What does Bata mean?

A. Bata in Japanese translates to butter.

Q. When can we see Charlotte Galette using this power?

A. We can see Charlotte Galette using her devil fruit powers to restrain Nami during the Whole Cake Island Arc.