Miss Steer told the panel in writing “she had made a mistake by drinking alcohol on shift and offering alcoholic drinks to her colleagues”.
She also expressed remorse for her actions, the panel said.
A review into the suspension order carried out by the NMC on 4 November heard she ceased to practise as a nurse in 2020.
It concluded she would be “liable to repeat” the same behaviour if she returned to nursing.
The panel issued a striking-off order, which will come into effect on 20 December, when the original suspension was due to end.
