Whisk dry ingredients together
Use a hand electric mixer or standing mixer to mix egg, buttermilk, and vanilla together
Add butter and sugars and mix again until creamed
Add in dry ingredients and mix until just combined
Stir in white chocolate chips (I used a mix of mini and full size to get some chocolate in each bite!)
Roll into balls, set on baking sheet lined with parchment paper, at least an inch apart, and press down slightly
Bake at 325 for 12 minutes
Right out the oven placw more white chocolate chips for that perfect cookie look and sprinkle with flakey sea salt
After 5 minutes carefully move to a wire cooling rack where they'll firm up slightly more
Enjoy!