Step 1

In a large bowl, add butter, shortening, and sugar. Mix until light and airy.

Step 2

Add eggs to the mixture one at a time, followed by the vanilla extract, and mix until smooth.

Step 3

In a small bowl, sift together flour, baking soda, and salt.

Step 4

Slowly add dry ingredients to the wet until just combined, then fold in chocolate chips.

Step 5

Cover the bowl of dough and place in fridge for a minimum of 30 minutes.

Step 6

Once dough has chilled, preheat oven to 350 degrees F and line 2 large cookie sheets with parchment paper.

Step 7

Portion out dough in ~1 tablespoon sized balls and place on the prepared cookie sheet.

Step 8

Bake for 6-8 minutes or until cookies are slightly golden in color.

Step 9

Allow cookies to cool for several minutes then transfer to a cooling rack.