The components of the dough recipe are mixed in a dough mixing apparatus (2). The resulting dough is divided into portions, each of which is aerated to produce aerated dough. Mixing and aerating are performed by separate devices. Aeration is performed at a pressure no less than 0.3 MPa, and the pressure is then reduced to atmospheric at a controlled rate of 0.02-0.2 MPa/s. The lowering of pressure to atmospheric occurs either before or after the removal of the aeration device (6) from the dough. The aeration process is performed in baking molds (1), or in intermediate vessels (16), and the dough is subsequently transferred to the molds (1). The transfer occurs either into the molds (1) under atmospheric pressure, after lowering the pressure in the intermediate vessels (16) to atmospheric, or into the molds (1) under increased pressure, where the pressure is decreased to atmospheric after the transfer is completed. The claimed invention simplifies and increases the accuracy of dividing the dough into portions of a specified weight, enhances the quality of the aerated dough, reduces energy consumption and increases production efficiency.