Ingredients

  • 1/3 cup butter or 1/3 cup margarine
  • 5 ounces unsweetened baking chocolate
  • 3/4 cup Bisquick baking mix
  • 3/4 cup granulated sugar, plus
  • 2 tablespoons granulated sugar
  • 2 teaspoons vanilla
  • 2 eggs
  • 1 1/2 cups miniature marshmallows
  • 1 tablespoon butter or 1 tablespoon margarine
  • 2/3 cup sour cream
  • 1 1/3 cups powdered sugar

Method

  • Heat oven to 350°F Grease and flour 9-inch square pan. In 1 1/2-quart saucepan, melt 1/3 cup butter and 2 1/2 ounces of the chocolate over low heat, stirring frequently. Cool slightly, about 15 minutes.
  • In medium bowl, beat chocolate mixture, Bisquick mix, granulated sugar, vanilla and eggs with electric mixer on low speed 30 seconds, scraping bowl frequently. Beat on medium speed 1 minute. Spread batter in pan.
  • Bake 20 to 25 minutes or until toothpick inserted in center comes out clean. Remove from oven; immediately sprinkle with marshmallows. Cover; let stand about 5 minutes or until marshmallows soften. Uncover; cool completely, about 1 hour.
  • In 1 1/2-quart saucepan, melt remaining 2 1/2 ounces chocolate and 1 tablespoon butter; cool slightly. Stir in sour cream and powdered sugar until smooth. Spread over marshmallow layer. Cover; refrigerate at least 2 hours or until firm. For bars, cut into 6 rows by 6 rows. Store in refrigerator.