Before

1. Make a stew with the apples and pears by cooking them together with the lemon juice in a saucepan until tender. You can also add the cinnamon here. Once the are done, set aside.
2. Preheat the oven at 180C (350F);
3. Prepare a square 9 inch mold by greasing it with butter.

For the nut crumble

1. Mix together all the ingredients with your hands: flour, brown sugar, nuts and butter until the texture is crumbly;
2. Set aside to assemble the cake.

Make the cake

1. Cream together the butter with the sugar, you can either do it by hand with a spatula (harder) or using a stand mixer with the paddle attached (around 2 min) until the mixture is light in color and fluffy;
2. Add the eggs one by one and mix well with each addition;
3. Add the vanilla extract and the oil and mix well;
4. Incorporate the flour and milk in a few steps and continue mixing until all comes as an homogeneous mixture.
5. Incorporate the flour and milk in a few steps and continue mixing until all comes as an homogeneous mixture.
6. Pour the batter into the pan and take it to the oven about 20 min;
7. After the time has passed remove from the oven and evenly spread the remaining apples and pears over the cake;
8. On top of it spread the nut crumble;
9. Take it to the oven for another 25 to 30 min
10. Remove from the oven, wait for the cake to cool down a bit and un-mold and let it completely cool on a rack or enjoy it warm!!