For the pear pyre, peel the pears and cut them into slices. Heat the oven to 180 degrees. Butter the baking dish.
Cut the rolls about 1.5 cm thick. Mix milk, eggs and 3 tablespoons sugar and cinnamon.
Alternate layers of dipped bread (in milk mixture) and pear slices in the baking dish. There should be slices of bread on the bottom and on the top.
Finally, sprinkle with a little sugar and bake in the oven for about 20 minutes until golden brown. Serve the pear pancake still warm.