1. Heat oven to 350°F. Line 9-inch square baking pan with foil, extending foil over edges of pan; grease and flour foil.
2. Combine sugar, butter and water in medium saucepan; cook over low heat, stirring constantly, until mixture boils. Remove from heat; immediately add 1 cup chocolate chips, stirring until melted. Beat in eggs and vanilla until well blended. Stir together flour, baking soda and salt; stir into chocolate mixture. Spread batter in prepared pan.
3. Bake 15 to 20 minutes or until brownies begin to pull away from sides of pan. Remove brownies from oven; with wooden skewer poke holes into brownie. Immediately and carefully spread caramel topping over brownie surface. Sprinkle remaining 1 cup chips and pecans over topping; lightly press into topping. Cool completely in pan on wire rack, being careful not to disturb chips while soft. Lift out of pan; cut into bars. Makes 16 bars.