
Combine butter, sugar, brown sugar with an electric mixer (or stand mixer) until smooth and creamy.
Add eggs and vanilla. Mix well.
Mix in flour, baking soda, corn starch and salt until combined.
Stir in chocolate chunks and roughly chopped macadamia nuts.
Place dough into the refrigerator to chill for an hour.
Remove from the refrigerator and roll cookie dough into similar sized balls-make about 28 cookie dough balls.
Place cookie dough balls onto a parchment covered baking sheet. Leave about 3 inches between cookies.
Note: after making the cookie dough balls, I like to break them in half and press the sides together-form a circle with the rough insides on top. Then, place them on cookie sheet. Press extra chocolate chunks and macadamia nut pieces into the top, as desired. This makes them look pretty.
Bake at 350° for 9-10 minutes. Allow 2-3 minutes for the cookies to cool on the cookie sheet. Then, move cookies to a cooling rack to finish cooling. Enjoy!