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Mud Hen Bars

Butterscotch cookie bars stacked on a small plate with a rustic background.
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5 from 1 review

Old-fashioned Mud Hen Bars with a buttery base, gooey chocolate chips, marshmallows, and a sweet brown sugar meringue topping.

Ingredients

Scale
  • 1/2 cup butter
  • 1 cup granulated sugar
  • 1 large egg, whole
  • 2 large eggs, separated
  • 1 teaspoon vanilla extract
  • 1 1/2 cups flour (7 oz)
  • 1 teaspoon baking powder
  • 1/4 teaspoon salt
  • 1/2 cup chopped walnuts (optional)
  • 1 cup semi-sweet chocolate chips
  • 1 cup mini marshmallows
  • 1 cup brown sugar, packed

Instructions

  1. Prepare the oven and pan: Heat the oven to 350°F and butter a 9-by-13-inch baking pan.
  2. Make the batter: In a mixing bowl with an electric mixer, beat the butter and sugar for 3 minutes or until light and fluffy. Beat in the whole egg, 2 egg yolks, and vanilla (you’ll be using the whites later).
    Combine the flour, baking powder, and salt in another bowl and stir to blend. Add the dry ingredients to the first mixture and mix on low until combined.

    Batter for mud hen bars, a southern bar cookie.

  3. Make the brown sugar meringue: In a separate bowl, beat the egg whites until stiff; fold in the brown sugar.

    The brown sugar meringue mixture for the mud hen bars topping.

  4. Assemble the layers in the pan: Spread the batter in the baking pan and sprinkle with the nuts, chocolate chips, and marshmallows. Spoon the meringue evenly over the marshmallow layer and gently spread to cover. Bake for 25 to 35 minutes or until golden brown.
    Layering mud hen bars in the pan with walnuts, chocolate chips, and mini marshmallows.
  5. Cool and serve: Cool the bars in the pan on a rack, then cut and serve. Enjoy!
    Closeup of a stack of mud hen bars.
    Stacks of mud hen bars.

Nutrition

Find it online: https://classic-recipes.com/mud-hen-bars/