Chocolate Chip Peanut Butter Oatmeal Banana Bread

Featured in: Soft Sweet Home Bakes

This indulgent yet wholesome quick bread combines the natural sweetness of ripe bananas with rich peanut butter and hearty old-fashioned oats. The batter comes together quickly, mixing dry ingredients with a smooth wet blend before folding in semisweet chocolate chips for pockets of melted goodness throughout each slice. Baked until golden with a tender crumb, this loaf delivers the perfect balance of protein-packed peanuts, warming cinnamon, and satisfying texture from the oats. Enjoy it warm from the oven, toasted with extra butter, or grab a slice for an energizing breakfast on busy mornings.

Updated on Wed, 21 Jan 2026 16:45:00 GMT
Moist Chocolate Chip Peanut Butter Oatmeal Banana Bread studded with melty chocolate. Pin it
Moist Chocolate Chip Peanut Butter Oatmeal Banana Bread studded with melty chocolate. | plumcrescent.com

There's something about the smell of banana bread baking that makes a kitchen feel like home, even if you've only just moved in. One rainy afternoon, I found myself standing in front of my pantry with three spotty bananas and a jar of peanut butter, wondering if I could make something that felt both comforting and a little bit indulgent. The answer came together faster than I expected—a loaf that turned out moist, nutty, and studded with chocolate chips that melted into pockets of warmth. It's become the bread I make when I want to feel like I've got my life together, even on days when I clearly don't.

I baked this for my neighbor who'd just come home from the hospital, and watching her face light up when she smelled it cooling on my counter told me everything. She ate two slices that afternoon, and I left the rest wrapped on her doorstep like some kind of carbohydrate fairy godmother. Food doesn't always need to be fancy to matter.

Ingredients

  • All-purpose flour: 1½ cups (180 g)—the foundation that holds everything together, so don't skimp or substitute wildly.
  • Old-fashioned rolled oats: 1 cup (90 g)—these add texture and heartiness that makes the bread feel substantial, not just sweet.
  • Baking soda: 1 tsp—the real MVP here, reacting with the acidic bananas to give you that tender crumb.
  • Baking powder: ½ tsp—a little extra lift to keep things fluffy alongside the baking soda.
  • Salt: ½ tsp—balances the sweetness and makes the peanut butter flavor pop.
  • Ground cinnamon: 1 tsp—adds warmth and depth without announcing itself loudly.
  • Ripe bananas, mashed: 3 medium (about 1 cup)—they should be spotty and soft, almost past the point where you'd eat them whole, because that's when they're sweetest.
  • Creamy peanut butter: ½ cup (120 g)—use something natural if you can, but don't overthink it; a regular jar works beautifully.
  • Light brown sugar: ½ cup (100 g), packed—molasses content gives moisture and a subtle depth that white sugar can't.
  • Neutral oil: ¼ cup (60 ml)—canola or sunflower keeps the crumb tender; don't use olive oil or you'll regret it.
  • Eggs: 2 large—they bind everything together and add richness without being overpowering.
  • Pure vanilla extract: 1 tsp—the real thing matters here, not the imitation stuff.
  • Semisweet chocolate chips: ¾ cup (130 g)—these melt into pockets of joy; dark chocolate chips work too if you want less sweetness.
  • Chopped roasted peanuts: ¼ cup (25 g), optional—adds a salty crunch that interrupts the softness in the best way.

Instructions

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Get Your Oven Ready:
Heat your oven to 350°F (175°C) and grease a 9×5-inch loaf pan thoroughly, then line it with parchment paper so the finished loaf slides out without drama. This step feels fussy until you're actually removing a perfect loaf from the pan.
Whisk Your Dry Team:
In a large bowl, whisk together the flour, oats, baking soda, baking powder, salt, and cinnamon until evenly combined. This is where you're distributing the leavening agents so every slice rises evenly.
Combine the Wet Mixture:
In another bowl, whisk together the mashed bananas, peanut butter, brown sugar, oil, eggs, and vanilla until the whole thing is smooth and homogeneous. It should look creamy and unified, like the peanut butter has surrendered completely.
Marry Wet and Dry:
Pour the wet ingredients into the dry bowl and mix gently with a spatula until just combined—overmixing here creates a tough, dense loaf and you'll know it immediately. Stop mixing the moment you don't see flour streaks anymore.
Fold in the Good Stuff:
Add the chocolate chips and peanuts (if using), reserving a small handful to sprinkle on top, and fold them in carefully so they're distributed but not crushed. The spatula is your friend; no aggressive stirring.
Ready the Pan:
Pour the batter into your prepared loaf pan and smooth the top with the back of your spatula to even it out. Scatter the reserved chocolate chips and peanuts across the top so they toast slightly during baking.
Bake Until Golden:
Bake for 50–55 minutes, until a toothpick inserted in the center comes out with just a few moist crumbs clinging to it—not dry, not raw. Your kitchen will smell absolutely unreal at around the 30-minute mark.
Cool with Patience:
Let the loaf cool in the pan for 10 minutes, then turn it out onto a wire rack to finish cooling completely before you slice into it. Cutting into warm bread is tempting, but you'll get gummy slices; waiting is worth it.
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Delicious Chocolate Chip Peanut Butter Oatmeal Banana Bread ready for slicing and enjoying. Pin it
Delicious Chocolate Chip Peanut Butter Oatmeal Banana Bread ready for slicing and enjoying. | plumcrescent.com

My son once asked if he could bring this to school for show-and-tell, which caught me completely off guard until I realized he meant it as a snack to share. There's something unexpectedly moving about food that's simple enough to feel casual but special enough that people remember it.

The Science of Moisture

This bread stays incredibly moist thanks to a few deliberate choices working in concert. The bananas release their natural moisture as they bake, the brown sugar hygroscopic nature pulls moisture from the air, and the oil coats the flour particles so they stay tender rather than drying out. I learned this the hard way by making a version with all white sugar once, and it was noticeably drier by day two. The combination of these three moisture sources is why this loaf tastes good even after a couple of days of sitting around, which is the whole point of a quick bread.

Chocolate Chip Strategy

There's an art to distributing chocolate chips so you get one in almost every bite without them sinking to the bottom and burning. Folding them in gently at the end, just before the batter goes into the pan, keeps them suspended throughout. Some people toss them in a little flour first to help them stay put, which actually works. The reserved chips sprinkled on top add visual appeal and give you a few extra-melty pieces on the outside.

Variations and Swaps

This recipe is forgiving enough to flex with what you have in your pantry. Almond butter or sunflower seed butter work beautifully in place of peanut butter if allergies are a concern or if you just feel like switching things up. Dark chocolate chips will make it less sweet, or you can add white chocolate for something totally different. You could even swirl 2 tablespoons of extra peanut butter on top of the batter before baking for a marbled effect that looks intentional and fancy.

  • If you don't have neutral oil, melted coconut oil or even applesauce in a pinch will change the flavor slightly but still work.
  • Fresh blueberries folded in instead of (or alongside) chocolate chips add brightness and tartness that balances the richness.
  • A sprinkle of sea salt on top before baking brings all the flavors into focus and makes people ask what your secret ingredient is.
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Wholesome Chocolate Chip Peanut Butter Oatmeal Banana Bread baked golden brown, perfect for breakfast. Pin it
Wholesome Chocolate Chip Peanut Butter Oatmeal Banana Bread baked golden brown, perfect for breakfast. | plumcrescent.com

This bread has become my go-to when I need something that feels homemade and wholesome but doesn't require any special skills or fancy equipment. Make it once, and you'll understand why it keeps getting requested.

Recipe Questions & Answers

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

Yes, quick oats work in this batter, though they'll create a slightly softer texture. Old-fashioned oats provide more structure and a heartier chew that holds up well during baking.

How do I know when the banana bread is fully baked?

Insert a toothpick into the center of the loaf—it should come out with a few moist crumbs but not wet batter. The top should be golden brown and spring back lightly when touched.

Can I make this without peanut butter?

Substitute with almond butter, sunflower seed butter, or even tahini for a different flavor profile. The quantity remains the same, though the nutty notes will vary slightly.

Should I use ripe or overripe bananas?

Ripe bananas with brown spots provide the best sweetness and moisture. Overripe bananas work exceptionally well—mash them thoroughly until no large lumps remain for even distribution.

Can I freeze this banana bread?

Wrap cooled slices tightly in plastic wrap, then place in a freezer bag for up to 2 months. Thaw overnight at room temperature or warm individual slices in the microwave for 20-30 seconds.

Why is my banana bread dense or gummy?

Overmixing the batter develops excess gluten, creating a dense texture. Mix just until combined—some dry streaks are okay. Also ensure your leavening agents (baking soda and powder) are fresh.

Chocolate Chip Peanut Butter Oatmeal Banana Bread

Moist, wholesome banana bread loaded with creamy peanut butter, hearty oats, and chocolate chips.

Prep time
15 minutes
Time to cook
55 minutes
Overall time
70 minutes
Created by Avery Hayes

Recipe type Soft Sweet Home Bakes

Skill level Easy

Cuisine type American

Total made 10 Portions

Dietary details Vegetarian-friendly

Ingredient list

Dry Ingredients

01 1½ 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 (approximately 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 (optional)

How-to

Step 01

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

Step 02

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

Step 03

Blend Wet Ingredients: In a separate bowl, combine mashed bananas, peanut butter, brown sugar, oil, eggs, and vanilla extract. Whisk until smooth and fully incorporated.

Step 04

Combine Mixtures: Pour wet ingredients into the dry mixture. Using a spatula, fold gently until just combined, being careful not to overmix.

Step 05

Fold in Mix-ins: Fold chocolate chips and peanuts into the batter, reserving a small amount for topping if desired.

Step 06

Transfer and Top: Pour batter into the prepared loaf pan and smooth the surface. Sprinkle reserved chocolate chips and peanuts on top.

Step 07

Bake Bread: Bake for 50 to 55 minutes, or until a toothpick inserted in the center emerges with a few moist crumbs.

Step 08

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

Tools Needed

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

Allergy warnings

Review all ingredients for allergy risks and speak with your healthcare provider if you're concerned.
  • Contains peanuts, eggs, wheat gluten, and may contain dairy from chocolate chips.
  • For nut allergies, substitute sunflower seed butter and omit peanut toppings.
  • Verify chocolate chip packaging for potential allergen cross-contamination.

Nutrition details (per portion)

These details are for reference and shouldn't replace healthcare advice.
  • Calorie count: 275
  • Fat content: 12 grams
  • Carbohydrates: 38 grams
  • Proteins: 6 grams