Winter is the peak season for old Beijing snacks. Here are some common old Beijing snacks in winter: Pot stickers: Pot stickers are small foods that are wrapped in dough and fried until the bottom is golden and crispy. Pot stickers are filled with pork, beef, mutton and other options. Stir-fried bumps: stir-fried bumps are made by cooking noodles cut into small pieces, oiling them, and adding minced meat, beans, carrots and other vegetables. Snowball roll: snowball roll is to roll the sweet flour cake with sweet sauce and bean paste, then roll it in glutinous rice flour, and finally cook it in clear water. Tofu brain: Tofu brain is soybean milk boiled, solidified into pieces with gypsum or bittern, chopped and eaten with seasonings such as Chili oil and peanut butter. Stir-fried chestnut: stir-fried chestnut is a sugar-coated gourd snack made by taking shelled chestnut and cooking it, pickling it with spiced powder and sugar. The above is one of the common snacks in winter in old Beijing. These snacks are not only delicious, but also can keep out the cold and warm up, which is very suitable for eating in cold winter.