Blend the tomatoes and chopped onion in the blender. Put the mixture in a large saucepan that has a lid and cook at medium until it bubbles; then turn to low for 1 hour. Cock the lid for a small opening to vent. While that's cooking; in a medium saute pan, put in the oil and garlic cloves. (I slice mine a little) Heat thru but do not burn.

After 1 hour of tomatoes cooking, add the oil and garlic, S&P, basil and sugar. Cook on low for 1 more hour. Put in mason jars to store in the refrigerator.