PREHEAT oven to 350° F. Grease 9-inch-square baking pan.
MICROWAVE sugar, butter, coffee granules and water in large, microwave-safe bowl on HIGH (100%) power for 2 to 3 minutes or until mixture bubbles. Add morsels; stir until melted. Add eggs one at a time, stirring after each addition until well blended. Stir in vanilla extract. Add flour, baking soda and salt; stir well. Pour into prepared baking pan.
BAKE for 20 minutes or until wooden pick inserted in center comes out slightly sticky. Cool in pan on wire rack for 1 to 2 hours. Cut into squares. Serve with ice cream and chocolate syrup, if desired.