Chocolate Chip Peanut Butter Oatmeal Banana Bread

Featured in: Sweet Smile

This moist quick bread combines the natural sweetness of ripe bananas with creamy peanut butter and hearty oats for a satisfying treat. The addition of semisweet chocolate chips creates pockets of melted chocolate throughout each slice, while optional roasted peanuts add delightful crunch. With just 15 minutes of prep time, this loaf comes together easily and bakes to golden perfection in under an hour.

The texture is wonderfully dense yet tender, making it ideal for breakfast with coffee or as an afternoon snack. Leftovers stay fresh for days and freeze beautifully for meal prep convenience.

Updated on Wed, 21 Jan 2026 13:25:00 GMT
Moist slices of Chocolate Chip Peanut Butter Oatmeal Banana Bread reveal melted chocolate chips and hearty oats, perfect for breakfast. Save
Moist slices of Chocolate Chip Peanut Butter Oatmeal Banana Bread reveal melted chocolate chips and hearty oats, perfect for breakfast. | grinnosh.com

My kitchen counter was drowning in brown bananas last Tuesday—that glorious stage where they're speckled and sweet enough to make anything taste better. I'd been craving something substantial, not just another basic banana bread, and that jar of peanut butter caught my eye. The house filled with this incredible warm scent, like a bakery crossed with a cookie shop, and my roommate wandered in asking what I was making.

Last weekend I brought this loaf to my sister's house, and her kids—usually suspicious of anything with visible oats—devoured three slices between them. My brother-in-law actually paused mid-bite to ask if I'd used some secret ingredient, because the peanut butter flavor comes through so subtly but perfectly. It's become my go-to when I need something that feels special but doesn't require half the day in the kitchen.

Ingredients

  • 1 ½ cups all-purpose flour: The foundation that holds everything together—measure by spooning into your cup and leveling off for accuracy
  • 1 cup old-fashioned rolled oats: Use these instead of quick oats for better texture—they stay tender but give you those lovely chewy pockets throughout
  • 1 tsp baking soda: Works with the acidic bananas to create lift, making sure your bread isnt dense or flat
  • ½ tsp baking powder: Extra insurance for a nice rise in the oven
  • ½ tsp salt: Enhances all the flavors and balances the sweetness
  • 1 tsp ground cinnamon: Adds warmth that pairs beautifully with both banana and peanut butter
  • 3 medium ripe bananas: The blacker and uglier, the better—they should mash easily with zero resistance
  • ½ cup creamy peanut butter: Use a natural brand for the best flavor swirl, though regular works fine too
  • ½ cup light brown sugar: Adds moisture and a deeper caramel note than white sugar alone
  • ¼ cup neutral oil: Keeps the bread tender without overpowering the other flavors
  • 2 large eggs: Room temperature eggs incorporate better and help create structure
  • 1 tsp pure vanilla extract: Don't skip this—it rounds everything out beautifully
  • ¾ cup semisweet chocolate chips: Semi-sweet balances the sweet bananas without becoming cloying
  • ¼ cup chopped roasted peanuts: Optional but worth it for that salty crunch contrast against the sweet chocolate

Instructions

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Get your oven ready:
Preheat to 350°F and grease a 9x5-inch loaf pan thoroughly, then line with parchment paper—that little overhang makes removing the bread effortless later
Whisk your dry mix:
In a large bowl, combine flour, oats, baking soda, baking powder, salt, and cinnamon until everything is evenly distributed
Mash your wet ingredients together:
In another bowl, combine those speckled bananas with peanut butter, brown sugar, oil, eggs, and vanilla, whisking until completely smooth
Combine the mixtures gently:
Pour the wet ingredients into the dry and fold with a spatula just until no flour streaks remain—some lumps are perfectly fine and will disappear during baking
Add the good stuff:
Fold in chocolate chips and most of the peanuts, keeping a small handful back for the top where they'll get toasty and golden
Bake to perfection:
Pour batter into your prepared pan, smooth the top, sprinkle with those reserved chips and nuts, then bake for 50 to 55 minutes until a toothpick comes out with moist crumbs clinging to it
Patience pays off:
Let it cool in the pan for exactly 10 minutes before using that parchment sling to transfer it to a wire rack—slicing too soon will give you a gummy center
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A freshly baked loaf of Chocolate Chip Peanut Butter Oatmeal Banana Bread with peanut pieces and warm cinnamon aroma on a cooling rack. Save
A freshly baked loaf of Chocolate Chip Peanut Butter Oatmeal Banana Bread with peanut pieces and warm cinnamon aroma on a cooling rack. | grinnosh.com

This bread became my comfort during those first few months of living alone, when I needed something warm and waiting in the kitchen after long days. There's something so satisfying about slicing into your own baking, seeing those chocolate chips melted into little pools, and knowing you made that happen.

Make It Your Own

Sometimes I swirl extra peanut butter on top before baking—just drop it in spoonfuls and drag a knife through gently. The way it gets slightly golden and creates these ribbons of creamy intensity throughout the bread is absolutely worth the extra minute.

Storage Secrets

This bread actually improves on day two, once the flavors have had time to meld and the texture settles. Wrap it tightly in plastic and keep it at room temperature for up to three days, though honestly, it rarely lasts that long in my house.

Freezing For Later

I slice the whole loaf before freezing, wrapping each slice individually in plastic then popping them all into a freezer bag. This means I can grab one slice at a time and either let it thaw on the counter or warm it directly in the toaster oven for that fresh-baked taste.

  • Dont forget to label your freezer bag with the date—this keeps for up to two months
  • If you're allergy-conscious, check your chocolate chips since many brands process nuts in the same facility
  • Sunflower seed butter makes an excellent substitute if you need to keep it nut-free for school or allergies
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Golden-brown Chocolate Chip Peanut Butter Oatmeal Banana Bread loaf sliced, showcasing moist crumb with peanut butter swirls and chocolate chunks ready to enjoy. Save
Golden-brown Chocolate Chip Peanut Butter Oatmeal Banana Bread loaf sliced, showcasing moist crumb with peanut butter swirls and chocolate chunks ready to enjoy. | grinnosh.com

There's nothing quite like the smell of this bread wafting through the house, making even the most ordinary Tuesday feel like a special occasion. Grab a slice while it's still slightly warm and you'll understand exactly what I mean.

Recipe FAQ

Can I use quick oats instead of old-fashioned rolled oats?

Yes, you can substitute quick oats, though the texture may be slightly less hearty. Old-fashioned oats provide better structure and a more satisfying chew in the finished loaf.

How do I know when the bread is fully baked?

Insert a toothpick into the center of the loaf. It should come out with a few moist crumbs clinging to it, but not wet batter. The top should be golden brown and firm to the touch.

Can I make this without peanut butter?

Yes, you can substitute almond butter, sunflower seed butter, or even coconut butter. Each alternative will slightly change the flavor profile while maintaining the moist texture.

Should I use ripe or overripe bananas?

Use bananas that are fully ripe with brown spots on the peel—they're sweeter and mash more easily. Overripe bananas work exceptionally well and provide the best moisture content.

Can I add mix-ins beyond chocolate chips?

Absolutely! Chopped walnuts, pecans, dried cranberries, or even shredded coconut work beautifully. Keep total add-ins to about 1 cup to maintain proper batter consistency.

How should I store this bread?

Wrap tightly in plastic wrap or store in an airtight container at room temperature for up to 3 days. For longer storage, freeze individual slices for up to 2 months.

Chocolate Chip Peanut Butter Oatmeal Banana Bread

Moist, wholesome quick bread with ripe bananas, peanut butter, oats, and chocolate chips.

Prep duration
15 min
Cook duration
55 min
Complete duration
70 min
Created by Hannah Lewis


Skill level Easy

Heritage American

Output 10 Portions

Dietary guidelines Meat-free

Components

Dry Ingredients

01 1 ½ cups all-purpose flour
02 1 cup old-fashioned rolled oats
03 1 teaspoon baking soda
04 ½ teaspoon baking powder
05 ½ teaspoon salt
06 1 teaspoon ground cinnamon

Wet Ingredients

01 3 medium ripe bananas, mashed (about 1 cup)
02 ½ cup creamy peanut butter
03 ½ cup light brown sugar, packed
04 ¼ cup neutral oil (canola or sunflower)
05 2 large eggs
06 1 teaspoon pure vanilla extract

Add-ins

01 ¾ cup semisweet chocolate chips
02 ¼ cup chopped roasted peanuts

Directions

Stage 01

Preheat Oven and Prepare Pan: Preheat oven to 350°F. Grease a 9x5-inch loaf pan and line with parchment paper for easy removal.

Stage 02

Combine Dry Ingredients: In a large bowl, whisk together flour, oats, baking soda, baking powder, salt, and cinnamon until well blended.

Stage 03

Mix Wet Ingredients: In another bowl, combine mashed bananas, peanut butter, brown sugar, oil, eggs, and vanilla. Whisk until smooth and creamy.

Stage 04

Combine Batter: Pour the wet ingredients into the dry ingredients. Mix gently with a spatula until just combined—do not overmix.

Stage 05

Fold in Add-ins: Fold in chocolate chips and peanuts, reserving a few for sprinkling on top if desired.

Stage 06

Transfer to Pan: Pour the batter into the prepared loaf pan and smooth the top. Sprinkle with reserved chocolate chips and peanuts.

Stage 07

Bake: Bake for 50–55 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs.

Stage 08

Cool and Slice: Cool in the pan for 10 minutes, then transfer to a wire rack to cool completely before slicing.

Necessary tools

  • 9x5-inch loaf pan
  • Mixing bowls
  • Whisk
  • Spatula
  • Wire rack
  • Parchment paper

Allergy details

Review each component for potential allergens and consult with healthcare professionals if you're uncertain about ingredients.
  • Contains peanuts, eggs, gluten (wheat), and may contain dairy (chocolate chips). For nut allergies, use sunflower seed butter and omit peanuts. Always check chocolate chip packaging for potential allergens.

Nutrient content (per portion)

These values are approximate guidelines only and shouldn't replace professional nutritional advice.
  • Energy: 275
  • Fats: 12 g
  • Carbohydrates: 38 g
  • Proteins: 6 g