Peel apples and pears and cut into not too small cubes. Put the cubes in a mold and mix with the lemon juice, cinnamon and 60 g sugar.
Mix the remaining sugar with the flour and lemon zest, add the butter and knead everything first with a dough hook, then with your hands to make crumble. Pour the streusel over the fruit.
Bake in the preheated oven at 200 ° C on the middle rack with bottom heat for about 30 minutes.