1- Peel the apples and pears, then remove the seeds. Cut them into quarters and sprinkle with lemon juice.
2- Cook them over low heat for about 10 minutes. Then add the granulated sugar and cinnamon. Mix, remove from heat, and set aside.
3- Mix 110 g of butter cut into pieces and brown sugar in a container. Then add the flour and crumble the mixture until it becomes crumbly.
4- Grease your baking dish with the remaining 40 g of butter. Add the apple-pear mixture, then distribute the dark chocolate squares.
5- Add the previously prepared crumble mixture on top in a single layer. To finish, bake the crumble in a preheated oven at 210°C for 20 minutes. Serve warm, if preferred!