Portuguese sauce is a sauce in Macanese cuisine.
In Macao, Portuguese sauce (Chinese: 葡汁, Portuguese: Molho português, Portuguese pronunciation: [ˈmoʎu puɾtuˈɣeʃ]) refers to a sauce that is flavored with curry and thickened with coconut milk.[1] It is an ingredient in Galinha à portuguesa, known as Portuguese Chicken in English-speaking societies.[1]
The Portuguese sauce from Macao is considered to be a legacy of Portugal's colonization of Daman and Diu in India,[1] and is likened to a mild yellow curry.[2]
Despite its name, Portuguese sauce (along with Galinha à portuguesa) is a Macanese cuisine invention, and is not a sauce used in Portuguese cuisine.[3]
The Portuguese sauce is like a mild yellow curry and it's not meant to be spicy at all.
I think the po kok gai is one of the best examples -- that translates into "Portuguese chicken." Interestingly enough, you'll never find this dish in Portugal.