Tomato Passata

Directions

1. 1
   In a large, heavy-based saucepan, cook tomatoes, covered, on medium heat 10 minutes. Pass mixture through a coarse sieve, discarding skins and seeds.
2. 2
   Heat 2 tablespoons extra-virgin olive oil in a large saucepan on medium. Cook onion for 10 minutes, stirring, until softened. Add tomato puree and simmer for 30 minutes, stirring occasionally. Season to taste.
3. 3
   Pour into warm sterilized bottles or jars and seal.