This S’mores Banana Bread is fluffy and moist thanks to Greek yogurt, then topped with gooey marshmallows that are toasted in the oven until golden and melty. Rich chocolate and crisp graham crackers add the classic s’mores flavors to every bite. It is a fun twist on classic American banana bread and an extra-indulgent treat that is perfect for dessert or a cozy afternoon snack.

Why You’ll Love This S’mores Banana Bread Recipe
Soft and moist: The banana and Greek yogurt keep the bread incredibly moist with a fluffy texture.
Sweet and chocolatey: Gooey chocolate and sweet marshmallows make every bite feel indulgent.
Perfect for ripe bananas: This is a delicious way to use up those overripe bananas sitting on your counter.
S’mores-inspired: Toasty marshmallows, melty chocolate, and graham crackers come together for a fun twist on a classic dessert.
Origin
Banana bread originated in the United States during the Great Depression when home bakers wanted to avoid food waste and decided to use overripe bananas in recipes. It is now a popular recipe for overripe bananas.
Ingredients
- 3 ripe bananas, mashed
- Natural sweetness
- ½ cup unsalted butter, melted
- Adds richness
- ¾ cup granulated sugar
- Sweetens the banana bread
- ¼ cup brown sugar packed
- Adds caramel-like flavor
- 1 large egg, room temperature
- Helps bind the ingredients
- 1 teaspoon vanilla extract
- Adds subtle warmth
- ⅓ cup greek yogurt or sour cream
- Keeps the banana bread moist
- 1½ cups all-purpose flour
- Provides structure
- 1 teaspoon baking soda
- Helps the banana bread rise
- ½ teaspoon salt
- Balances the sweetness
- Mini Marshmallows
- Adds a gooey and toasted topping
- Chocolate
- Rich melty chocolate
- Graham crackers
- Adds a crisp crunch
Click on the images for the direct link to the ingredients/tools I used:


Instructions
Preheat the oven to 350°F.
In a large mixing bowl, mash the bananas until smooth.


Add the melted butter, granulated sugar, brown sugar, egg, vanilla extract, and sour cream to the bananas. Whisk until combined.

Gradually fold the dry ingredients into the wet mixture, stirring gently until just combined. Avoid overmixing.

Fold in the chocolate chips.

Pour the batter into a parchment-lined loaf pan.

Bake for 50–55 minutes, or until a toothpick inserted into the center comes out with only a few moist crumbs.
Remove from the oven and cover the top with marshmallows.

Bake for 3 minutes and then broil for the last minute. Watch carefully so the marshmallows do not burn.

Add chocolate pieces and graham crackers.

Let it cool.
Slice.

Enjoy.

S’mores Banana Bread Tips
Use very ripe bananas: The riper the bananas, the sweeter and more flavorful your banana bread will be.
Don’t overmix the batter: Mix just until the flour is incorporated to keep the banana bread soft and fluffy.
Watch the marshmallows closely: They can go from golden brown to burnt quickly under the broiler.
Storage Tips
Room temperature: Store in an airtight container for up to 3 days.
Fridge: Store in an airtight container for up to 5 days.
Frequently Asked Questions
Can I use regular yogurt instead of Greek yogurt?
Yes. Plain yogurt can be substituted for Greek yogurt.
When should I add the marshmallows?
For the best results, add the marshmallows toward the end of baking, so they become golden and gooey without burning.
How do I know when the banana bread is done?
Insert a toothpick into the center of the loaf. It should come out with a few moist crumbs but no wet batter.
Ingredient Substitutions
Greek yogurt → Plain yogurt or sour cream
Graham crackers → Digestive biscuits or crushed vanilla cookies
Common Mistakes
- Using underripe bananas: Bananas that aren’t ripe enough won’t provide as much natural sweetness or banana flavor.
- Overmixing the batter: Mixing too much can make the banana bread dense.
- Broiling without watching: Marshmallows toast very quickly under the broiler, so keep a close eye on them to prevent burning.
- Slicing while it’s too hot: Cutting into the loaf immediately can cause it to fall apart. Let it cool for at least 15–20 minutes before slicing.
What to Serve With S’mores Banana Bread
Coffee → The rich chocolate and toasted marshmallow flavors pair perfectly with a hot cup of coffee.
Milk → A cold glass of milk is a classic pairing for this s’mores-inspired banana bread.
S’mores Banana Bread
Ingredients
- ¾ cup granulated sugar
- ¼ cup brown sugar packed
- 1 large egg room temperature
- 1 teaspoon vanilla extract
- ⅓ cup sour cream or greek yogurt
- 1½ cups all-purpose flour
- 1 teaspoon baking soda
- ½ teaspoon salt
- Marshmallows
- Chocolate
- Graham crackers
Instructions
- Preheat the oven to 350°F.
- In a large mixing bowl, mash the bananas until smooth.
- Add the melted butter, granulated sugar, brown sugar, egg, vanilla extract, and sour cream to the bananas. Whisk until combined.
- Gradually fold the dry ingredients into the wet mixture, stirring gently until just combined. Avoid overmixing.
- Fold in the chocolate chips.
- Pour the batter into a parchment-lined loaf pan.
- Bake for 50–55 minutes, or until a toothpick inserted into the center comes out with only a few moist crumbs.
- Remove from the oven and cover the top with marshmallows.
- Bake for 3 minutes and then broil for the last minute. Watch carefully so the marshmallows do not burn.
- Add chocolate pieces and graham crackers.
- Let it cool.
- Slice.
- Enjoy.
If you enjoyed this recipe, you might also like my s’mores cookies or my moist chocolate chip banana bread recipes.
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