"The new sauce"
In French, most adjectives are placed after the noun.
Certain adjectives are placed before the noun, some which you can memorize with the acronym "BANGS":
Beauty - Age - Numbers - Good and bad - Size (except for grand with people)
These descriptors - and a few others - are considered inherent qualities of the noun: For example "une nouvelle maison" for "a new house"
Please also have a look at the following link: http://french.about.com/od/grammar/a/adjectives_4.htm