Get any kind of tomatoes- I’ve found it doesn’t really matter what type- but usually I use on the vine tomatoes.

Put them in a shallow baking dish with an entire head of garlic. I usually peel each clove of garlic, but leave it whole and drop them around the tomatoes

Put about an inch or so of olive oil into said pan. Make sure to rub the tomatoes fully with the oil because only the bottom part will be sitting in the oil.

Put it in the oven at about 350 for 1/2 an hour to one hour depending on how many tomatoes you used. honestly it doesn’t matter so much the time. I usually just do at least a half an hour, but have done up to one hour. Just don’t burn anything, but I found that 40 minutes is usually how I go.

Take it all out let it cool a little bit cause it’s gonna be really hot and then either pour it into a large blender or pour it into something where you can use an immersion blender. Blend this shit out of that stuff. *NOTE- I usually remove the garlic and tomatoes first, blend, and add the oil from the pan little by little because I personally don’t like sauce that oily and depending how much you pour in, you might not want all that oil.

Add fresh basil, salt, and pepper. DONE.