Before you do it, prepare the ingredients, the right amount of tomatoes, onions, auxiliary olive oil, garlic and so on. Wash all the ingredients, cut the tomatoes into cubes, preferably smaller, the texture will be better. Cut the onion into cubes and set aside, cut the basil leaves small and chop them. Then put all the ingredients into a food processor, mix well, and squeeze the juice. It's best to use high speed for about 3 minutes, pour it out and set it aside. Then put the oil into the pot, preferably olive oil, when 80% hot, put the tomatoes in, when it thickens, the tomato sauce is made, you can serve out.

If you can't finish it, it's best to put it in a clean, oil-free glass jar and seal it. When it gets cold, put it in a cool place to keep it, or you can put it in the freezer of the refrigerator to keep it for a very long time, it won't be so easy to spoil or mold, and it usually tastes good for a few months. Put it into the bottle, pour some honey into it, the flavor will be better, will also be preserved for a longer time, but not too much, moderate amount on the line, about a spoonful or so. When keeping it, you can put the bottle upside down, so that no air will get in and it will be sealed better. When you eat it, use some clean, water and oil free spoon to scoop it out and eat it.

When you make it, put some butter in it, it tastes good too. If you don't want to fry it in a pan, you can heat it up in the microwave and it tastes great too. When you make it, you can scald the bottle with boiling water to sterilize it better and it will be cleaner. After sterilizing, let it dry, and then put the tomato sauce in it. Or put some bay leaves and rock sugar in it, it tastes good too. But don't put too much sugar, the calories will be very high, eat too much, it is easy to get fat.