1.Preheat oven to 350°F. Lightly grease 13X9-inch baking pan.
2.Combine caramel topping and 1/4 cup flour in small bowl; set aside. Combine remaining 1 cup flour, baking powder and salt in small bowl; mix well.
3.Place unsweetened chocolate and butter in medium microwavable bowl. Microwave on HIGH 2 minutes or until butter is melted; stir until chocolate is completely melted.
4.Stir sugar into melted chocolate. Add eggs and vanilla; stir until blended. Add flour mixture; stir until well blended. Spread chocolate mixture evenly in prepared pan.
5.Bake 25 minutes. Remove brownies from oven; immediately spread caramel mixture over brownies. Sprinkle top evenly with chocolate chips and pecans.
6.Return pan to oven; bake 20 to 25 minutes or until topping is golden brown and bubbling. Do not overbake. Cool brownies completely in pan on wire rack. Cut into 2X1-1/2-inch bars.
7.Store tightly covered at room temperature or freeze up to 3 months.