Mississippi Mud Bars

Ingredients

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

Preparation

Step 1

1 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.
2 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.
3 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.
4 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.