<human>:  How do I make tomato sauce from scratch?
<bot>: To make homemade tomato sauce from scratch, you'll need to begin by gathering some fresh tomatoes, garlic, and onion. Start by roughly chopping the vegetables and then sauté them in olive oil until they are soft and fragrant. Once they are cooked, add some salt and pepper to the mix. Then, add the chopped tomatoes and some oregano. Simmer on low heat for about 20 minutes until the tomatoes break down and the sauce thickens. Add some fresh basil, taste and adjust seasonings as need, and it is now ready to serve. Enjoy!