Heat oven to 350 degrees F. Grease a 13 by 9-inch pan. In medium saucepan over low heat, melt margarine. Add sugar, vanilla and eggs; blend well. Lightly spoon flour into measuring cup; level off. Stir in flour, cocoa and salt; mix well. Add chocolate and pecans. Pour into prepared pan. Bake for 30 to 40 minutes or until set. Cool. Cut into 36 bars.
Note: This recipe was provided by professional chefs and has been scaled down from a bulk recipe provided by a restaurant. The FN chefs have not tested this recipe, in the proportions indicated, and therefore, we cannot make any representation as to the results.