Can I do Undyne's cooking lesson when I'm doing the neutral route?

[E A. Benson]

I was doing the pacifist run, but then I killed a couple of the minor enemies. I didn't kill any bosses, but Papyrus told me Undyne doesn't want to hang out. I have 6 LOVE and I only killed 3 minor monsters. Can I still go to Undyne's cooking lesson? I saw somebody else do it, and I was really looking forward to it...

[Papa Crust]

You can't. She won't become friends with a murderer.

[E A. Benson]

Ok. I will do it when I reset and do the True Pacifist route then.

[Daedelous]

Undyne will not befriend you if you have killed a single monster, you must also revive her with water after she passes out from heat stroke after chasing you. Dating Papyrus might also be required.

[E A. Benson]

I did give her water, and I did the date with Papyrus. I will reset the game and do the True Pacifist run later, after I'm done with the neutral.

[Kptn Howdy]

no

[RangedSpider]

Well you can cook with her then kill monsters.