Dried fruit dish (Guozi Gan)
The Dictionary of the Beijing Dialect has this recipe for Guozi Gan: Take dried persimmon as the main ingredient, add dried apricot, and then soak them in warm boiled water. Add slices of fresh lotus root and mix well.
The dried persimmon brings amber and the dried apricot an orange-red, and then there is the white of the lotus root all set with sweetened osmanthus flower juice.
Served over ice, it tastes cool, crisp with a touch of sweet and sour. Very refreshing, it is a taste of summer

Pea Flour Cake (Wandouhuang )
 Prepared with white peas, pea flour cake is a typical snack in spring. Pea flour cakes. kidney bean cakes and small corn buns were well-known imperial snacks in ancient China.



Mung bean Milk (Douzhi )
Beijing has a long history of making mung bean milk. As early as in the Liao (907-1125) and Song (960-1279) dynasties, mung bean milk was very popular. Local people of Beijing love to drink mung bean milk, because it is rich in protein, vitamin C and rough fiber and helps drive away summer heat, invigorate the function of the spleen and whet the appetite.



Sweetened Fried Flour Gruel (Youcha )

People in Beijing love to eat sweetened fried flour gruel because it is tonic.




Pastry Made of Soy Bean Flour (Ludagun )

As one of the ancient snacks of Beijing, Ludagun is mainly made of soy bean flour mixed with sugar. It is a popular snack in Beijing.



Boiled sheep innards (Baitang Zasui)
Its unique taste has made it a favorite of most native Beijingers. It is made from the internal organs of the sheep. Sheep tripe, heart, meat from the sheep's head, lung and intestines are shredded then thoroughly cooked in a mutton stock with such seasonings as salt, seeds of the Chinese prickly ash, green onion, ginger and garlic. It is ready when the soup turns milky white after the surface is skimmed off. It is served with flavorings of coriander, sesame paste and pungent sauce.

Baodu Feng
One could be excused for thinking that Baodu (quick-fried tripe) was just a snack for ordinary people. But Baodu Feng was once a supplier of oxen and sheep tripe to the imperial kitchens.
 

From:http://forum.china.org.cn/viewthread.php?tid=3408