Toasted Marshmallow Pumpkin Chocolate Bars

Pumpkin Chocolate Bars are rich, gooey dessert bars made with pumpkin puree, warm fall spices, chocolate chips, and a toasted marshmallow topping. They have a soft pumpkin layer, pockets of melted chocolate, and a lightly caramelized marshmallow finish that makes them perfect for fall gatherings, Halloween, Thanksgiving, bake sales, or cozy weekend baking.

This Pumpkin Chocolate Bars recipe combines classic autumn flavor with the sweetness of chocolate and marshmallow. The pumpkin keeps the bars soft and moist, while cinnamon, nutmeg, and vanilla give them a warm bakery-style aroma.

Prep Time: 20 minutes
Bake Time: 30–35 minutes
Cooling Time: 30 minutes
Total Time: About 1 hour 25 minutes
Servings: 16 bars

Ingredients

For the Pumpkin Bar Batter

• 1 cup pumpkin puree
• 1/2 cup unsalted butter, melted
• 3/4 cup packed brown sugar
• 1/3 cup granulated sugar
• 2 large eggs
• 2 teaspoons vanilla extract
• 1 1/2 cups all-purpose flour
• 1 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1 1/2 teaspoons ground cinnamon
• 1/2 teaspoon ground nutmeg
• 1/4 teaspoon ground ginger
• 1/4 teaspoon salt
• 1 cup semi-sweet chocolate chips

For the Marshmallow Topping

• 2 cups mini marshmallows
• 1/2 cup chocolate chips
• 1/4 cup chopped pecans or walnuts, optional
• Pinch of flaky sea salt, optional

Why You’ll Love This Recipe

Pumpkin Chocolate Bars are soft, rich, and easy to make with simple ingredients. The pumpkin gives the bars a tender texture, while the chocolate adds enough sweetness to make them feel indulgent without needing frosting.

Another reason to love Pumpkin Chocolate Bars is the toasted marshmallow topping. It creates a slightly crisp, golden surface with a gooey center that pairs beautifully with the chocolate and pumpkin.

They are also easy to transport, slice, and serve, making them a convenient dessert for parties and holiday tables.

How to Make Pumpkin Chocolate Bars

Step 1: Preheat the Oven

Preheat the oven to 350°F or 175°C.

Line an 8-inch square baking pan with parchment paper, leaving enough overhang on two sides to lift the bars out later.

Lightly grease the parchment.

Step 2: Mix the Wet Ingredients

In a large mixing bowl, whisk together the pumpkin puree, melted butter, brown sugar, granulated sugar, eggs, and vanilla.

Whisk until smooth and glossy.

Step 3: Mix the Dry Ingredients

In a separate bowl, whisk together the flour, baking powder, baking soda, cinnamon, nutmeg, ginger, and salt.

Mixing the dry ingredients separately helps the spices and leavening distribute evenly through Pumpkin Chocolate Bars.

Step 4: Combine Wet and Dry Ingredients

Add the dry mixture to the pumpkin mixture.

Fold gently with a spatula just until no dry streaks remain.

Do not overmix, because too much mixing can make the bars dense instead of soft.

Step 5: Add the Chocolate Chips

Fold 1 cup of chocolate chips into the batter.

Make sure they are evenly distributed so every slice gets pockets of melted chocolate.

Step 6: Spread the Batter

Transfer the batter to the prepared pan.

Spread it into an even layer and smooth the top.

The batter for Pumpkin Chocolate Bars will be thicker than cake batter but softer than cookie dough.

Step 7: Bake the Bars

Bake for 25 to 30 minutes.

The center should look set, and a toothpick inserted near the middle should come out with a few moist crumbs.

Do not bake until completely dry, because the bars continue setting as they cool.

Step 8: Add the Marshmallows

Remove the pan from the oven.

Sprinkle the mini marshmallows evenly over the top, followed by the remaining chocolate chips and optional chopped nuts.

Return the pan to the oven.

Step 9: Toast the Topping

Bake for another 5 minutes, or until the marshmallows puff and begin to soften.

For a more deeply toasted finish, switch the oven to broil for 30 to 60 seconds.

Watch carefully because marshmallows can burn very quickly.

Step 10: Cool Before Slicing

Remove Pumpkin Chocolate Bars from the oven and place the pan on a wire rack.

Let the bars cool for at least 30 minutes.

Cooling helps the pumpkin layer firm up and makes slicing much easier.

Step 11: Lift and Slice

Use the parchment overhang to lift the dessert from the pan.

Place it on a cutting board and slice into 16 squares.

For cleaner cuts, lightly grease or warm the knife before slicing through the marshmallow layer.

Serving Suggestions

Pumpkin Chocolate Bars are delicious at room temperature, slightly warm, or chilled.

Serve Pumpkin Chocolate Bars with coffee, hot chocolate, chai, or black tea for a cozy fall dessert.

For a more indulgent serving, add a scoop of vanilla ice cream or a spoonful of whipped cream.

A light sprinkle of cinnamon or flaky sea salt on top can also balance the sweetness.

For another comforting family meal, try our Hearty Chicken and Vegetable Stew with tender chicken, vegetables, herbs, and rich savory broth.

Recipe Tips

Use pure pumpkin puree, not pumpkin pie filling. Pumpkin pie filling already contains sugar and spices, which can make the bars too sweet.

Measure the flour carefully so Pumpkin Chocolate Bars stay soft and moist.

Do not overbake. A few moist crumbs on the toothpick are ideal.

Use semi-sweet chocolate if you want the dessert to stay balanced. Milk chocolate can make the bars noticeably sweeter.

Keep a close eye on the marshmallows while broiling.

Let the bars cool before slicing so the marshmallow topping stays in place.

Easy Variations

Pumpkin Chocolate Bars are easy to customize.

For extra chocolate flavor, add cocoa powder to the batter or use dark chocolate chunks.

For more crunch, stir chopped pecans or walnuts into the batter.

A caramel version can include a thin drizzle of caramel sauce over the toasted marshmallow topping.

For stronger spice flavor, increase the cinnamon slightly or add a pinch of cloves.

You can also replace some of the chocolate chips with white chocolate chips for a sweeter contrast.

You may also enjoy our Ultimate Cheesy Veggie Casserole for a creamy, colorful dish packed with vegetables and melted cheese.

Make-Ahead Instructions

Pumpkin Chocolate Bars can be made one day in advance.

Bake and cool the bars completely, then cover the pan tightly and store at room temperature or in the refrigerator.

If you want the marshmallow topping to look especially fresh, prepare the pumpkin base first and add the marshmallows shortly before serving, then toast them under the broiler.

Storage and Freezing

Store leftover Pumpkin Chocolate Bars in an airtight container at room temperature for up to 2 days.

For longer storage, refrigerate them for up to 5 days.

Place parchment paper between layers if stacking the bars.

You can also freeze the bars for up to 2 months. Wrap individual pieces tightly, place them in a freezer-safe container, and thaw in the refrigerator.

The marshmallow topping may become slightly softer after freezing, but the flavor will still be good.

Nutrition Information

Approximate nutrition per bar:

Calories: 265
Protein: 3 g
Carbohydrates: 39 g
Fat: 11 g
Saturated Fat: 6 g
Fiber: 2 g
Sugar: 25 g
Sodium: 135 mg

Nutrition values are estimates and may vary depending on the chocolate, marshmallows, butter, nuts, and exact serving size.

Frequently Asked Questions

Can I use pumpkin pie filling?

Pure pumpkin puree is recommended. Pumpkin pie filling is already sweetened and spiced, so it can change the flavor and texture.

Can I use dark chocolate?

Yes. Dark chocolate is a great option if you prefer a less sweet dessert.

Why are my bars too cakey?

Too much flour or overbaking can make the bars more cake-like. Measure carefully and remove them once the center is set.

Can I use large marshmallows?

Yes. Cut them into smaller pieces so they melt and toast more evenly.

Can I make these without nuts?

Yes. The nuts are completely optional.

Can I make them ahead?

Yes. Pumpkin Chocolate Bars store well and can be prepared a day before serving.

Can I freeze them?

Yes. Freeze cooled bars for up to 2 months in an airtight container.

Final Thoughts

Pumpkin Chocolate Bars are an easy fall dessert that combines soft pumpkin batter, warm spices, melted chocolate, and a gooey toasted marshmallow topping.

Because Pumpkin Chocolate Bars are easy to slice, transport, and prepare ahead, they work well for Thanksgiving, Halloween, bake sales, potlucks, and family gatherings.

Keep this Pumpkin Chocolate Bars recipe handy whenever you want a cozy dessert with classic autumn flavor and plenty of chocolate.

With moist pumpkin, rich chocolate, warm spices, and golden marshmallows, Pumpkin Chocolate Bars are a crowd-pleasing treat that brings together some of the best flavors of fall.