No, it is not possible for a potato knish to have the same gravitational pull as Earth. The gravitational pull of an object is determined by its mass and the distance between it and another object. Earth's mass is approximately 5.97 x 10^24 kg, which gives it a significant gravitational force. A potato knish, on the other hand, is a small pastry with a mass that is many orders of magnitude smaller than that of Earth.
In order for a potato knish to have the same gravitational pull as Earth, it would need to have a mass comparable to that of Earth. This is physically impossible for a pastry of that size. Increasing the mass of the knish to such an extent would also cause it to collapse under its own gravity and form a very different type of celestial body, and it would no longer be a potato knish.
