I introduced it as one of the first foods and started with a spoon of soft boiled egg yolk and scrambled eggs added to veggies.

Yes of course if they are old enough to eat solids why not scramble eggs or little egg quiches

I’ve thought of this and realised they get a lot of egg from stuff already. But I avoided egg white til after 12 months

Introduce yolk first as the white is the allogenic component! As long as its full cooked, I don’t think it matters? I just boiled up a hard boiled egg and mashed up the yolk…haven’t gotten as far as introducing the egg white though