Step 1

Preheat your oven to 350°F.

Step 2

Using either a stand mixer or an electric hand mixer, cream together the butter, brown sugar and granulated sugar until light in color and fluffy in texture.

Step 3

Scrape the sides of the bowl and add in the eggs, corn syrup, molasses and vanilla extract. Mix until well combined.

Step 4

Add in the flour, salt and baking soda. Mix until a sticky dough forms.

Step 5

Stir in the chocolate chunks.

Step 6

Portion out your dough into 3 tbsp portions. Roll into a ball and arrange on your cookie sheet. Add more chocolate chunks on top, if desired.

Step 7

Bake at 350° F for 9-11 minutes. The cookies will spread and the edges will start to turn golden brown when they are ready to come out of the oven.

Step 8

Allow the cookies to cool on the pan before transferring to a wire rack.

Step 9

To get the soft edge that Costco cookies are known for, store the cookies in an air tight container over night. The edges will soften as they sit, right out of the oven they are more buttery crisp.