Cream the butter and sugars in a standing mixer, or by hand, until light and fluffy, about 30 seconds or so.
Add both eggs and the vanilla. Mix until well incorporated, about 20 seconds.
Give it anther good mix, and then add the dry ingredients: the flour, the baking soda, and the salt. Mix until well incorporated, and no powder remains.
Add your choice of chocolate chips and chunks. Stir gently until they are mixed in. Using a 3 tablespoon measure, scoop cookie dough balls onto a nonstick baking sheet. Bake at 375°F for 12 minutes, or until golden on the outside.
Cool on cookie sheet for five minutes, then transfer to a baking rack to cool completely. These are best served day of or the next day. Store any leftovers in an airtight container for up to three days. Enjoy!
Notes
See blog for dietary substitutions for dairy and gluten, along with a fully vegan option.