Heat oven to 350ºF. In large bowl, beat butter, sugars, vanilla and eggs with electric mixer on medium speed, or mix well with spoon until well blended. Lightly spoon flour into measuring cup; level off. Stir in flour, baking soda and salt. Using heavy-duty wooden spoon, stir in chips and pecans; dough will be stiff and chunky (you may need to use your hands).