Heat a large pan and add the onions.
Cook on medium heat for 5 minutes, stirring intermittently.
After 5 minutes add 2 tablespoons of water and stir.
Add the garlic, fresh tomatoes, canned tomatoes, tomato paste, basil, oregano and sea salt and stir until all ingredients are combined.
Turn the heat down to low and cover with a lid at an angle so the lid isn’t tight.
Simmer for one hour, stirring every 10-15 minutes.