What is the purple-brown sauce served with breakfast at Yanghe Dawang?

[Friday 21]

Yanghe Dawang (永和大王) serves a breakfast called "蛋饼油条套餐" that comprises youtiao wrapped in an omelet. Inside is some purple-brown sweet sauce. They also provide this sauce in a small saucer if you order the youtiao separate. Does anyone know the name of the sauce? Is there any manufacture selling a similar product off-the-shelf?

[889 1,773]

Isn't it so-called Plum Sauce 苏梅酱, the same thing you smear on pancakes with Peking Duck?

 

 

[Friday 21]

It might be...I never made the connection between the two.