The dough was sticky for me too, but that it how it is supposed to be I think. Thanks for all the feedback!!

I wasn’t sold on the combination of eggnog and dark chocolate so I omitted it. I followed all of the other instructions as written but the dough ended up really, really sticky. I added flour until it felt right which ended up being about a cup but I didn’t measure so I’m not sure. I like soft cookies so I under-baked them a little (23 min). They turned out delicious but a little thin.

The second time I again omitted the chocolate but this time added 2 tsp of nutmeg which really enhanced the eggnog flavor (sounds like a lot, I know, but I loved it). I prefer to weigh my ingredients and usually use 135g/cup which would have been 304g but I knew I had to add a lot of flour the last time so I used 400g and it was still sticky. I decided not to add more flour and instead refrigerated the dough overnight. I wanted them to be more thick and chewy but still soft so I baked them at 325 for 18 minutes. PERFECT!

Sorry that was so long. In summary, 1) add more flour and 2) these are my new favorite Christmas cookies!