Double Chocolate Chunk Cookies

These are the best cookies I have had in a long time! They are so chocolately and I love the white chocolate chunks in them the best.
Double Chocolate Chunk Cookies
1 bag (24 oz) semisweet chocolate chips (4 cups )
1 cup butter or margarine softened.
1 cup packed brown sugar
1 teaspoon vanilla
2 eggs
2 1/2 cups all-purpose flour
1 1/2 teaspoons baking soda
1/2 teaspoon salt
1 package (6 oz) white baking bars (white chocolate), cut into 1/4- 1/2 inch chunks(i used white chocolate chips)
1 cup pecan or walnut halves (I left these out as I feel nuts ruin a good cookie)
1. Heat oven to 350 degrees. Melt 1 1/2 cups of the chocolate chips in 1 quart sauce pan over low heat, stirring constantly. Cool to room temperature, but do not allow chocolate to become firm.
2. Beat butter, brown sugar and vanilla in large bowl with electric mixer on medium speed until light and fluffy. Beat in eggs and melted chocolate until light and fluffy. Stir in flour, baking soda and salt. Stir in remaining 2 1/2 cups chocolate chips, white baking bar chunks and pecan halves.
3. Drop dough by level 1/4 cupfuls or #16 cookie/ice cream scoop about 2 inches apart onto ungreased cookie sheet. Bake 12 to 14 minutes or until set. (centers will appear soft and moist). Cool 1 to 2 minutes; remove from cookie sheet to wire rack.