PREHEAT oven to 350F.
MIX all seven base ingredients together and pour the batter into a greased 9x13-inch baking dish.
BAKE for 25-30 minutes; COOL.
MIX the three second layer ingredients and SPREAD on cooled base.
SET cake in refrigerator to chill.
MELT chocolate chips and butter together in microwave.
STIR well and refrigerate for 15-20 minutes or until it reaches spreading consistency.
SPREAD over top of cake and let SET until firm.
CUT into bars.
Use butter, not margarine, for best creamy texture. Use a moistened knife or pizza cutter when cutting bars.
Per Serving (excluding unknown items): 471 Calories; 27g Fat (50.9% calories from fat); 4g Protein; 55g Carbohydrate; 1g Dietary Fiber; 128mg Cholesterol; 329mg Sodium. Exchanges: 1/2 Grain(Starch); 1/2 Lean Meat; 5 Fat; 3 Other Carbohydrates.