Once butter has cooled, add sugars and thoroughly combine.
Add eggs, vanilla, and yogurt and stir well.
In a separate bowl, whisk together flour, cornstarch, baking powder, baking soda, and salt.
Slowly add dry ingredients to the wet ingredients and fully combine.
Fold in chopped chocolate.
Cover bowl and chill in refrigerator for at least 30 minutes.
Preheat oven to 350 F and line a cookie sheet with parchment paper .
Scoop out 2 TBSP sized portions of dough, roll into a ball, and place 2 inches apart on a cookie sheet.
Sprinkle with flaky sea salt then bake for 12 minutes until cookies are turning a golden brown color.
Allow to cool and enjoy!
Love this! I’ve never tried making these with the addition of Greek yogurt, although I have used it in many of my cake recipes (major game changer)! Will have to try it with cookies next time. 🙂