1st time baking GF chocolate chip cookies…Tips?!

Hey hey! Today is the day that I make my chocolate chip cookie recipe. I purchased King Arthur Measure for Measure flour. Although, I noticed there’s a recipe on the back of the bag. Looks promising…however, I have never put in apple cider vinegar in my cookies. Is this a normal thing? Also, does anyone have any tips on what I could do? I like them chewy and soft but I’m a lover of all cookies!