鉄板焼き Teppan Yaki

She is cooking Tofu.

Teppanyaki (鉄板焼き, teppan-yaki) is a style of Japanese cuisine that uses an iron griddle to cook food.

They are made famous in the US by https://www.benihana.com

This is not at Benihana but Teppan Yaki shopping Kobe.
Kobe Beef.