Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
                        -----------------CAKE----------
     1/2  cup           Unsalted butter -- at room temperature
     1/4  cup           Granulated sugar;
                        ---------BROWNIE--------
     1/2  cup           Unsalted butter -- at room temperature
     3/4  cup           Granulated sugar;
     1/2  teaspoon      Baking powder;
                        ----LAYER----
     1/2  cup           Margarine -- at room temperature
   1      cup           All-purpose flour;
     1/4  teaspoon      Salt;
                        LAYER-------------------------------
     1/2  cup           margarine -- at room temperature
   3      Sqs.          Unsweetered chocolate;
   2      large         Eggs;
   3      tablespoons   All-purpose flour;

Preparation:

CAKE LAYER: Heat oven 350 degrees. Grease an 11" X 17" baking pan. In food processor or with eledtric mixer, process or beat the butter, flour, sugar and salt until mixture holds together and forms a dough. Press over bottom of pan. Bake 20 minutes or until light golden and firm when touched. BROWNIE LAYER: Heat butter and chocolate in a small saucepan over low heat, stirring often, until melted. Cook 5 minutes. In a medium-size bowl, whisk eggs, sugar, flour and baking powder until blended. Whisk in cooled chocolate mixture. Pour over shortbread base. Bake 20 minutes or until top feels firm. Cool in pan before cutting in bars.