Heat oven to 350...Grease bottom only of 13x9-inch pan. In large bowl,combine all brownie ingredients; Spread in greased pan... Bake for 33 to 35 minutes or until set. Cool completely. In medium bowl, beat 1/2 cup margarine and cream cheese until light and fluffy. Add remaining filling ingredients; beat until smooth.Spread evenly over cooled brownies. In small saucepan, melt frosting ingredients over low heat until smooth, stirring constantly. Remove from heat; cool 15 minutes...Pour frosting evenly over filling,spread carefully to cover. Refrigerate 1 hour before cutting into bars....Garnish as desired.. Store in refrigerator.... Recipe By : Classic Cookbooks 1994