Tomato Sauce Large Batch by hip pressure cooking

olive oil, yellow onions, carrots, celery, plum tomatoes, basil, potato masher

– 4 tablespoons olive oil
– 2-3 medium yellow onions, sliced into rings
– 2 large carrots, roughly chopped
– 1 celery stalk, roughly chopped
– 6 pounds (3 k) plum tomatoes, quartered
– 6-8 fresh basil leaves
– potato masher
– immersion blender
– 6 – 1 pint (500 ml) glass jars and lids, freshly dish-washed
– wide-mouth funnel (optional)