Step 1

Preheat oven to 375° F. Line 2 baking sheets with parchment paper & set aside.

Step 2

Combine flour, baking soda and salt in small bowl. Whisk and set aside.

Step 3

Beat butter, shortening, granulated sugar, brown sugar and vanilla extract in large mixing bowl until creamy.

Step 4

Add eggs, one at a time, beating well after each addition. Gradually beat in flour mixture. Stir in chocolate chips. Cover dough & refrigerate at least 4 hours.

Step 5

Remove dough from fridge & let sit 20 minutes. Drop by rounded tablespoon onto ungreased baking sheets.

Step 6

Bake for 9 to 11 minutes or until golden brown. Cool on baking sheets for 2 minutes; remove to wire racks to cool completely.