2 yellow onions, peeled and diced
1 Tbsp (15 mL) extra-virgin olive oil
4 cups (1 L) tomatoes, chopped
Sea salt and fresh pepper to taste
1 cup (250 mL) basil leaves
In large saucepan over medium heat saute onions in olive oil until softened. Add chopped tomatoes; season with a pinch of salt and pepper. Bring to boil then reduce to a simmer; cook until thickened. Add basil leaves; adjust seasoning to taste, then cool. Refrigerate or freeze as desired.
Makes about 2 cups (500 mL).
source: "Glorious Tomatoes", alive #322, August 2009