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Decadent Peanut Butter Marshmallow Cookie Bars

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Sinners’ Squares Recipe

If you’re looking for a decadent treat that combines the richness of peanut butter, the sweetness of marshmallow, and the comforting texture of a cookie bar, Sinners’ Squares are just the dessert for you. Perfect for satisfying your sweet tooth, these easy-to-make bars come together quickly, making them ideal for a last-minute dessert or a bake sale hit. Let’s walk through this indulgent recipe step by step, with detailed instructions to ensure that every batch turns out perfectly.


Sinners’ Squares Recipe

Prep Time: 10 minutes

Cook Time: 20 minutes

Total Time: 30 minutes

Yield: 1 Pan (approximately 24 squares, depending on size)


Ingredients

Ingredient Quantity
Butter (melted) 1 cup
Creamy peanut butter 1/2 cup
Marshmallow creme (fluff) 1/2 cup
Box of dry cake mix (yellow or vanilla) 1 box

Nutritional Information (Per pan)

Nutrient Amount
Calories 4,492.4 kcal
Fat 239.4 g
Saturated Fat 88.8 g
Cholesterol 244 mg
Sodium 5,737.2 mg
Carbohydrates 574 g
Fiber 20.5 g
Sugar 311.1 g
Protein 65.9 g

Instructions

  1. Preheat the Oven
    Set your oven to 350°F (175°C). This will ensure it’s at the perfect temperature once you’ve finished preparing your ingredients.

  2. Prepare the Crumb Mixture
    In a large mixing bowl, combine the dry cake mix and the melted butter. Mix well until the ingredients come together and form a crumbly dough. It may look a bit dry, but that’s what you’re aiming for.

  3. Form the Crust
    Press most (but not all) of the crumb mixture into the bottom of a 9×13-inch baking pan. Make sure the crust is even, as this will serve as the foundation for your delicious bars.

  4. Prepare the Filling
    In a separate bowl, combine the creamy peanut butter with the marshmallow creme. Stir until well mixed, creating a fluffy, sweet peanut butter filling. This mixture will add a rich, gooey layer to the bars.

  5. Add the Filling
    Spread the peanut butter and marshmallow mixture evenly over the pressed crumb crust. Try to get it as smooth as possible, as this will create a uniform middle layer of sweetness.

  6. Top with Crumbs
    Take the remaining crumb mixture and sprinkle it over the peanut butter and marshmallow layer. This will give the bars a delightful crumbly top.

  7. Bake
    Place the pan in the preheated oven and bake for approximately 20 minutes, or until the top becomes lightly golden and the filling is set. Be careful not to overbake, as you want the squares to remain soft and chewy.

  8. Cool and Serve
    Remove the pan from the oven and allow it to cool completely. Once cooled, cut into squares. Enjoy these indulgent treats with a glass of milk or serve them as a sweet dessert at a gathering.


Notes

  • Customizing: If you’re feeling creative, you can add chocolate chips or a drizzle of chocolate sauce over the top before baking to take this treat to the next level.
  • Storage: Store the squares in an airtight container at room temperature for up to 3 days, or refrigerate to extend freshness.

Why You’ll Love Sinners’ Squares

These cookie bars are the perfect combination of flavors and textures. The buttery crust pairs beautifully with the creamy peanut butter and marshmallow filling, while the crumbly topping adds a pleasant contrast. Plus, with just four main ingredients, this recipe is incredibly simple to make but tastes like it took hours to prepare! Whether you’re making a quick dessert for your family or whipping up a batch for a potluck, these squares are sure to be a crowd-pleaser.


Keywords

Dessert, Cookie & Brownie, <30 Mins, Oven, Easy

This recipe from lovewithrecipes.com will bring smiles and satisfied cravings to anyone who indulges. Give it a try today, and watch how quickly these delightful Sinners’ Squares disappear!

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