Tomato Sauce Concentrate - cooking recipe

Ingredients

3 lbs tomatoes, peeled and seeded
2 tablespoons extra virgin olive oil
1 large onion, chopped
4 garlic cloves, chopped

Preparation

Remove cores, cut in half and remove seeds from when tomatoes are cool.
Put in the blender and puree, this will make about 4 cups.
In a large pot, heat oil and the onions, saute until golden and soft about 10 minutes.
Add garlic and saute for about 5 minutes more on low.
Add the tomato puree and stir.
Bring to a simmer and reduce the heat to medium-low so it is bubbling but not boiling.
Cook for an hour and stir occasionally.
Cool completely, then measure 1 cup portions into freezer containers and chill completely.
Freeze.
To use, thaw in refrigerator overnight.
Use as a base, making into pasta sauce, soup or whatever you need it for.