The video shows a person using a piping bag to fill a tart shell with chocolate. The tart shell is placed on a wooden surface, and there are four tart shells in total. The person is wearing a white apron and is using a metal spatula to spread the chocolate evenly in the tart shell. The chocolate is dark brown and appears to be a thick consistency. The person is skilled in their movements, and the chocolate is spread smoothly without any lumps.