Melt 1/3 cup chocolate chips; set aside.
In medium bowl, combine flour, cocoa powder, baking soda and salt; set aside.
In large bowl, with electric mixer, beat Country Crock® Spread and sugars 3 minutes or until light and fluffy. Beat in eggs, one at a time, beating well after each addition. Beat in reserved melted chocolate and vanilla until blended, scraping sides occasionally. With mixer on low, beat in flour mixture. Stir in walnuts and remaining 1 cup chocolate chips. Wrap dough in plastic wrap and freeze until firm, about 1 hour.
Preheat oven to 375°. On ungreased baking sheets, drop dough by level tablespoons, 2 inches apart.
Bake 9 minutes or until just set on top. On wire rack, cool 1 minute; remove from sheets and cool completely.