Kitchen chemists: Will this cookie recipe end in disaster (see details please)

Today I decided to make these Reese’s Chewy Chocolate Cookies while talking on the phone with my grandmother. Big mistake, because with all the chatting I misread the recipe and didn’t notice until the cookie dough was done.

Instead of using 1½ cups (2½ sticks) of butter, I used ¾ cup (1½ sticks). What effect will this have on the cookies? The dough looks normal, and doesn’t seem “off” from what cookie dough normally looks like. However, I’ve never made this particular recipe. Will the cookies be edible? Is there anything I can do to save them, even though the rest of the ingredients, including the peanut butter chips, have already been mixed in?

Thanks! The dough is in the fridge until I get back from the library, so I won’t be baking them immediately.