Hey, thank you for downloading! Regarding you not being able to make tomato sauce, make sure to follow the steps very well in the cookbook. You have to first make mashed tomato touching the tomato with the roller, then put a POT (not a pan) in the stove and at last, put the mashed tomato in the pot (make sure it touches the pot and a boiling sound can be heard). After more or less 10 seconds, the mashed tomato will become tomato sauce. If for some reason, you are throwing the mashed tomato in the pot and it isn't going automatically inside WHEN THE POT IS ON THE STOVE, then grab the pot and put it again on the stove (you will know it works if it gets placed automatically on the stove).