In these cases, you can substitute ketchup for tomato sauce in a one-to-one ... All sorts of products can be used as a base, including crushed tomatoes, puree, paste, fresh tomatoes, and even canned ...

ideally blanched and peeled — before you simmer it into a concentrated mock paste. In a pinch, tomato sauce and ketchup can ...

Narrator: The ketchup-making process starts here, where crates of tomato paste weighing 1,300 kilograms are transported from the Heinz warehouse using automated forklifts. The crates are opened ...