Start by baking the chocolate cake according to package instructions.

Once baked, allow the cake to cool completely before cutting.

In a large mixing bowl, whisk together the instant pudding mix and cold milk for about 2 minutes.

Gently fold 2 cups of whipped cream into the pudding mixture until combined.

Cut the cooled chocolate cake into small cubes, about 1 inch in size.

In your trifle dish, start with a layer of cake cubes, followed by a layer of the chocolate pudding mixture. Repeat the layers until you reach the top of the dish, finishing with pudding.

Add the remaining whipped cream on top of the pudding layer.

Sprinkle chocolate chips over the top layer of whipped cream for decoration.