Add softened butter, white sugar, and brown sugar to large mixing bowl. Use stand mixer or hand mixer on low-to-medium speed to beat together ingredients until mixture is fully-combined and smooth.
Add whole egg and vanilla extract to butter-sugar mixture. Continue mixing ingredients until egg is fully incorporated.
Add flour, baking soda, and salt to medium mixing bowl. Whisk until ingredients are thoroughly distributed, then slowly add flour mixture to butter mixture and mix until ingredients are fully combined and cookie dough forms.
Remove bowl from stand mixer if using, and add in 1 cup chocolate chips. Use spatula to gently fold in chocolate chips, being careful not to overmix dough.
Use cookie scoop to portion dough into 1-tablespoon-sized portions and roll each portion between palms of hands to form cookie dough ball. Set ball aside on plate or parchment paper and repeat until all cookie dough has been portioned and smoothed.
Preheat air fryer to 300° Fahrenheit. When air fryer is preheated, line basket with parchment paper. Place cookie dough balls on parchment paper approximately 1-inch apart, being careful not to overcrowd basket. Work in batches as needed depending on air fryer size and number of cookies.
Place basket in air fryer. "Bake" cookies 7 to 8 minutes, then remove basket from air fryer. allow cookies to sit in basket 1 minute, then transfer cookies to wire cooling rack. Repeat until all cookies have been "baked".
Serve as desired, or let cookies cool completely, then transfer cookies to airtight container and save for later.