2. It is mainly popular in Hebei Province, among which the baked cakes in the jar furnace around Tangshan and Shijiazhuang are represented. The unique production method is to lie in the jar, stick cakes on the inner wall and bake them at outside temperature. Tanziyao scones are square (round) drum-shaped, brown in color, crispy and delicious, and have a unique flavor, which is a favorite food for foreign tourists.

3, the cylinder furnace sesame seed cake, the sesame seed cake made by burning the cylinder with a stove, so it is called the cylinder furnace sesame seed cake. Making food in jars is a very unique method. It makes use of the smoothness, temperature and thickness of the jar, and the baked sesame seed cake is not sticky or slippery, and tastes fragrant, crisp and crisp. The making method of this kind of biscuit is very temperature-conscious, because it is convex in the cylinder, and cold or hot biscuits will slide down. Tanlu sesame seed cake is square (round) and may have cornices, which are about the size of sesame seed cake.