Any ideas for simple cookie recipes that can be prepared with few ingredients?

I found out very last minute that a friend is having a housewarming/birthday party this evening. I figured it’d be nice to get her a serving dish for her new house and fill it with some homemade cookies, however I am very, very limited in ingredients.

I have:
-Butter
-White granulated sugar
-Brown sugar
-Ground cinnamon
-Whole wheat flour
-Baking powder
-Eggs
-Milk
-Salt
-Vanilla
-M&M’s
-Chopped walnuts

I was thinking Snickerdoodles but, unfortunately, I do not have any cream of tartar and most recipes call for that.

Any ideas?

Would it ok to refrigerate the cookie dough now for tomorrow?

I am making sugar cookies for Easter. I planning to make two doughs. And on teh recipe to refrigerate for two hours. The dough wrapped around wax paper. If I make on dough this morning would it still be fine to use tomorrow when I am to start making them. I plan to do another dough tomorrow morning. I wonder if it would fine. I be leaving soon to go to a birthday party that an hour away.. Thanks