A method of producing baked egg using a horizontal rotating cylinder-type continuous frying apparatus, which baked egg has a small size and a strong fried flavor, is disclosed. Egg liquid is sprayed onto the inner surface of a heating drum while rotating the heating drum to solidify the egg liquid and then to make the solidified egg liquid detach from the inner surface of the heating drum, which egg liquid is sprayed within an area of the inner surface of the heating drum, which area expands at an angle of 60° to 150° in the direction of rotation of the heating drum from a rotation origin defined as the intersection of a vertical line and the rotation axis of the heating drum, wherein the angle is indicated taking the angle of the direction of the vertical line as 0°. The heating drum has a temperature and a rotation speed such that the egg liquid sprayed onto the inner surface of the heating drum is solidified and then the solidified egg liquid is detached from the inner surface before the heating drum rotates by 360°.