She likes to add salad dressing when making sandwiches.
Tips
usage
色拉 (sèlā) is a phonetic transliteration of English 'salad', so 色拉酱 is roughly 'salad-sauce'. The synonym 沙拉酱 is also widespread - 色拉 is more common in Shanghai/Taiwan usage, 沙拉 elsewhere. Both are interchangeable.
memory
酱 (jiàng) is the all-purpose Chinese suffix for thick sauces and pastes: 番茄酱 (ketchup), 果酱 (jam), 豆瓣酱 (fermented bean paste). Once you know 酱, you can guess most condiment names on a menu.
