Pumpkin Muffin S’mores Bars

Featured in: Seasonal Simple Bakes

Enjoy a fusion of classic s’mores and spiced pumpkin muffins with these delicious bars. Featuring a moist pumpkin base, crunchy graham cracker crust, and melty chocolate topped with perfectly toasted mini marshmallows, every bite is a cozy blend of autumn flavors. Quick to prepare, they’re ideal for gatherings or enjoying at home. Serve warm for gooey perfection and customize with pecans or gluten-free swaps for any crowd.

Updated on Mon, 27 Oct 2025 13:58:00 GMT
Moist pumpkin muffin s’mores bars topped with gooey marshmallows and chocolate chips. Pin it
Moist pumpkin muffin s’mores bars topped with gooey marshmallows and chocolate chips. | weeknightwhisk.com

A delightful fusion of spiced pumpkin muffins and classic s'mores, these bars feature a moist pumpkin base, gooey chocolate, and toasted marshmallows for a cozy, crowd-pleasing treat.

I first baked these Pumpkin Muffin S'mores Bars for a family game night and they disappeared in minutes. The blend of autumn flavors with nostalgic s'mores brings warmth and comfort to any gathering.

Ingredients

  • Pumpkin Muffin Base: 1 cup (220 g) pumpkin puree, 2 large eggs, 1/2 cup (120 ml) vegetable oil, 3/4 cup (150 g) brown sugar, 1/4 cup (60 ml) milk, 1 1/2 cups (190 g) all-purpose flour, 1 tsp baking powder, 1/2 tsp baking soda, 1/2 tsp salt, 1 tsp ground cinnamon, 1/2 tsp ground ginger, 1/4 tsp ground nutmeg
  • S'mores Layer: 1 cup (120 g) graham cracker crumbs, 2 tbsp (28 g) unsalted butter (melted), 1 cup (170 g) semi-sweet chocolate chips, 2 cups (100 g) mini marshmallows

Instructions

Prepare Pan:
Preheat oven to 350°F (175°C). Line a 9x9-inch (23x23 cm) baking pan with parchment paper.
Crust:
In a medium bowl, combine graham cracker crumbs and melted butter. Press the mixture evenly into the bottom of the prepared pan to form the crust.
Pumpkin Batter:
In a large bowl, whisk together pumpkin puree, eggs, oil, brown sugar, and milk until smooth.
Combine Dry Ingredients:
Add flour, baking powder, baking soda, salt, cinnamon, ginger, and nutmeg to the wet ingredients. Stir until just combined. Do not overmix.
Layer Batter:
Pour pumpkin muffin batter evenly over the graham cracker crust.
Add Chocolate Chips:
Sprinkle chocolate chips evenly over the pumpkin batter.
Bake:
Bake for 25 minutes. Remove from oven and scatter mini marshmallows evenly on top.
Finish Baking:
Return to oven for an additional 5–7 minutes, or until marshmallows are golden and a toothpick inserted in the center comes out clean (avoid piercing melted chocolate).
Cool and Slice:
Cool completely in the pan before slicing into bars.
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My kids love helping sprinkle chocolate chips and marshmallows on top, making this a sweet family tradition each fall.

Serving Suggestions

Enjoy these bars slightly warm for extra gooeyness or pair with a mug of spiced hot chocolate on a chilly evening.

Substitutions & Variations

For extra crunch, add chopped toasted pecans to the batter. Try making with white chocolate chips for a twist.

Allergen & Nutrition Info

Each bar contains approximately 260 calories, 11 g fat, 38 g carbohydrates, and 3 g protein. Contains wheat, eggs, milk, soy, and may contain nuts.

Delicious pumpkin muffin s’mores bars, perfectly baked with chocolate and marshmallow layers. Pin it
Delicious pumpkin muffin s’mores bars, perfectly baked with chocolate and marshmallow layers. | weeknightwhisk.com

Serve these Pumpkin Muffin S'mores Bars fresh for best texture and flavor. Store leftovers airtight for up to three days.

Common Questions

Can I make these bars gluten-free?

Yes, substitute gluten-free flour and graham crackers for a gluten-free version that maintains delicious texture and flavor.

What spices enhance the pumpkin flavor?

Cinnamon, ginger, and nutmeg add warmth and depth, complementing the pumpkin's natural sweetness perfectly.

How do I prevent marshmallows from burning?

Add marshmallows during the last few minutes of baking and watch closely for golden brown tops.

Can I swap out chocolate chips?

Semi-sweet chocolate chips work best, but try dark or milk chocolate, or even chopped chocolate bars for variety.

What is the best way to serve these bars?

They're best slightly warm for maximum gooeyness, but can be enjoyed at room temperature or reheated briefly in the oven.

Are there any nut-free options?

Omit pecans if avoiding nuts and check ingredient labels for nut-free chocolate chips and graham crackers.

Pumpkin Muffin S’mores Bars

Soft pumpkin bars with layers of chocolate and toasted marshmallow for a warm, spiced treat.

Prep Time
20 min
Cook Time
30 min
Time Needed
50 min
Created by Ella Thompson


Skill Level Easy

Cuisine American

Makes 12 Portions

Dietary Info Meat-Free

What You'll Need

Pumpkin Muffin Base

01 1 cup pumpkin puree
02 2 large eggs
03 1/2 cup vegetable oil
04 3/4 cup brown sugar
05 1/4 cup milk
06 1 1/2 cups all-purpose flour
07 1 teaspoon baking powder
08 1/2 teaspoon baking soda
09 1/2 teaspoon salt
10 1 teaspoon ground cinnamon
11 1/2 teaspoon ground ginger
12 1/4 teaspoon ground nutmeg

S'mores Layer

01 1 cup graham cracker crumbs
02 2 tablespoons unsalted butter, melted
03 1 cup semi-sweet chocolate chips
04 2 cups mini marshmallows

Step-by-Step

Step 01

Prepare Baking Pan: Preheat oven to 350°F. Line a 9x9-inch baking pan with parchment paper for easy removal.

Step 02

Form Graham Crust: Combine graham cracker crumbs and melted butter in a medium bowl. Press mixture firmly into the base of prepared pan to create an even crust.

Step 03

Mix Pumpkin Batter: In a large bowl, whisk together pumpkin puree, eggs, vegetable oil, brown sugar, and milk until smooth.

Step 04

Incorporate Dry Ingredients: Add all-purpose flour, baking powder, baking soda, salt, cinnamon, ginger, and nutmeg to the bowl. Stir until just combined, avoiding overmixing.

Step 05

Layer Batter: Spread the pumpkin muffin batter evenly over the graham cracker crust in the pan.

Step 06

Add Chocolate Chips: Distribute chocolate chips evenly on top of the pumpkin batter layer.

Step 07

Initial Baking: Bake in the preheated oven for 25 minutes.

Step 08

Top with Marshmallows: Remove the pan from the oven and scatter mini marshmallows evenly across the surface.

Step 09

Final Baking: Return pan to oven for 5 to 7 minutes, until marshmallows are golden and a toothpick inserted into the center (avoiding melted chocolate) comes out clean.

Step 10

Cooling and Slicing: Allow bars to cool completely in the pan before slicing into 12 even portions.

Tools Required

  • 9x9-inch baking pan
  • Mixing bowls
  • Whisk
  • Spatula
  • Parchment paper

Allergy Notice

Go through every ingredient to identify allergens and talk to your healthcare provider if you have concerns.
  • Contains wheat (all-purpose flour, graham crackers)
  • Contains eggs
  • Contains milk (butter, milk, chocolate chips)
  • Contains soy (chocolate chips)
  • May contain nuts (check chocolate chips and graham crackers)
  • Verify all ingredient labels for hidden allergens if unsure

Nutrition Information (per portion)

Nutrition details are for general reference and shouldn't replace advice from your doctor.
  • Caloric Content: 260
  • Fats: 11 g
  • Carbohydrates: 38 g
  • Proteins: 3 g