Print
clock clock iconcutlery cutlery iconflag flag iconfolder folder iconinstagram instagram iconpinterest pinterest iconfacebook facebook iconprint print iconsquares squares iconheart heart iconheart solid heart solid icon

Mississippi Mud Bars


5 Stars 4 Stars 3 Stars 2 Stars 1 Star

No reviews

  • Author: Yusra
  • Total Time: 1 hour 30 minutes
  • Yield: 16 bars
  • Diet: Vegetarian

Description

Rich, chewy dessert bars packed with layers of chocolate, peanut butter, and toasted pecans, topped with a marbled melted chocolate finish for an indulgent treat perfect for gatherings and holidays.


Ingredients

  • 1 stick (113 g) unsalted butter, softened
  • 1 cup (200 g) packed brown sugar
  • 1/2 cup (130 g) creamy peanut butter
  • 1 large egg, room temperature
  • 1 tablespoon pure vanilla extract
  • 1 cup (125 g) all-purpose flour
  • 1/2 teaspoon baking soda
  • 1/2 teaspoon salt
  • 2 ounces (56 g) white chocolate, coarsely chopped and divided
  • 8 ounces (226 g) semisweet chocolate, coarsely chopped and divided
  • 1 cup (120 g) toasted pecans, coarsely chopped and divided

Instructions

  1. Preheat the oven to 325°F (165°C). Lightly grease an 8-inch or 9-inch square baking pan.
  2. In a large mixing bowl, beat the softened butter and brown sugar with an electric mixer on medium speed until creamy and smooth.
  3. Add the peanut butter and mix until fully combined.
  4. Add the egg and vanilla extract and beat until well blended.
  5. In a separate bowl, whisk together the flour, baking soda, and salt.
  6. Gradually add the dry ingredients to the butter mixture and mix until a smooth batter forms.
  7. Stir in half of the chopped white chocolate and half of the semisweet chocolate.
  8. Fold in half of the chopped toasted pecans.
  9. Spread the batter evenly into the prepared baking pan.
  10. Bake for 25–30 minutes until the center is soft but no longer runny.
  11. Remove the pan from the oven and immediately sprinkle the remaining white and semisweet chocolate over the hot bars.
  12. Cover the pan loosely with aluminum foil and allow the chocolate to melt for several minutes.
  13. Use the tip of a knife to gently swirl the melted chocolates together to create a marbled pattern.
  14. Sprinkle the remaining chopped pecans evenly over the top.
  15. Allow the bars to cool completely on a wire rack.
  16. Cut into approximately 2-inch squares before serving.

Notes

  • An 8-inch pan produces thicker bars, while a 9-inch pan gives thinner bars.
  • Chocolate chips can be used instead of chopped chocolate if preferred.
  • Do not overbake; the center should remain slightly soft for the best chewy texture.
  • Covering the pan with foil helps melt the chocolate evenly for easy swirling.
  • Allow bars to cool fully before cutting to keep clean edges.
  • Prep Time: 10 minutes
  • Cook Time: 25-30 minutes
  • Category: Dessert
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 bar
  • Calories: 320
  • Sugar: 22 g
  • Sodium: 150 mg
  • Fat: 20 g
  • Saturated Fat: 9 g
  • Unsaturated Fat: 9 g
  • Trans Fat: 0 g
  • Carbohydrates: 32 g
  • Fiber: 2 g
  • Protein: 5 g
  • Cholesterol: 30 mg