Cook the onions and garlic in a pan until golden. Add the spices, salt and pepper and cook together for another minute. 洋葱入锅炒至金黄,加入各种香料,盐和胡椒粉再炒一分钟。
Puree the tomatoes with juice in a food processor until smooth. 将蕃茄打浆至顺滑。
Add the tomatoes, tomato paste, brown sugar and vinegar to the onion mixture and simmer for about 45 minutes, until it is very thick. Make sure to stir occasionally so the tomato mixture doesn't burn. 在炒洋葱的锅中加入打好的蕃茄浆,蕃茄膏,黄糖和苹果醋小火慢煮45分钟直至浓稠。中间要用勺子搅拌以免焦底。
Puree the ketchup in a food processor and chill until cold. 将烧好的蕃茄沙司再用料理棒打顺滑,然后凉食用。