Step 1

Preheat oven to 350° F. Set aside 2-3 baking sheets.

Step 2

Combine flourbaking soda and salt in small bowl. Beat buttergranulated sugar and vanilla extract in large mixer bowl until creamy. Add eggsone at a timebeating well after each addition. Gradually beat in flour mixture.

Step 3

Place half of the dough into a separate bowl. Stir cocoa powder into 1 half of the dough. Stir white morsels into cocoa dough. Stir Semi-Sweet morsels into the other half of dough.

Step 4

Using a tablespoonportion the chocolate chip cookie dough into half tablespoon sized balls onto one of the baking sheets. Repeat with the cocoa dough on another sheet.

Step 5

Create a marbled effect by combining one chocolate chip dough piece with one cocoa dough piece. Gently press the two dough balls together and roll in your hands into a single ball. Repeat with remaining dough balls. Place balls onto baking sheetsleaving at least 1.5 inches between each cookie.

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.