How much butter should I use for these cookies?

I’m making cookies for Thanksgiving and the recipe calls for a stick of butter. I’m tripling the recipe. Would I use 3 sticks of butter or cut down on the butter? I know sometimes when you make double or more of a recipe it says to cut down on the egg, butter etc.

Thanks?
Thanks everyone, I went ahead and used all 3 sticks of butter. I knew I was supposed to but it just looked like so much butter!!! I’m glad I did though because they taste really good–and so does the cookie dough! =)