Chocolate Chip Peanut Butter Oatmeal Banana Bread

Featured in: Wholesome Bakes

This moist, wholesome quick bread brings together the best flavors: naturally sweet ripe bananas, creamy peanut butter, hearty old-fashioned oats, and melty semisweet chocolate chips. The texture is perfectly tender yet substantial, making it an ideal choice for breakfast or afternoon snacking. Ready in about 70 minutes with just 15 minutes of prep, this loaf yields 10 generous slices and stays fresh for days when wrapped tightly.

Updated on Wed, 21 Jan 2026 15:29:00 GMT
Moist Chocolate Chip Peanut Butter Oatmeal Banana Bread with melty chips. Save
Moist Chocolate Chip Peanut Butter Oatmeal Banana Bread with melty chips. | oventhyme.com

There's something about the smell of banana bread baking that makes a kitchen feel like home, even if you've just moved in. One Saturday morning, I was standing in my tiny apartment kitchen, staring at three very brown bananas on the counter and a jar of peanut butter that seemed like it was calling my name. I'd been craving something that felt both comforting and a little bit special, so I decided to throw together banana bread with peanut butter, oats, and chocolate chips—basically everything good in one loaf. That first bite changed how I thought about quick breads forever.

I made this for my neighbor last spring when she was recovering from surgery, and she called me three days later asking if I could drop off another loaf because her husband had eaten the first one in two sittings. That's when I realized this bread wasn't just good—it was the kind of thing people actually want to eat, not just politely finish because someone baked it.

Ingredients

  • All-purpose flour (1 ½ cups): This is your structure, so don't skip it or swap it recklessly, though whole wheat flour works if you like a denser crumb.
  • Old-fashioned rolled oats (1 cup): They add chewiness and make the bread feel more substantial than regular banana bread, plus they're secretly doing nutritional heavy lifting.
  • Baking soda (1 tsp) and baking powder (½ tsp): This duo makes sure your loaf rises properly and stays tender—don't confuse them or your bread will either be flat or bitter.
  • Salt (½ tsp) and ground cinnamon (1 tsp): Salt isn't optional; it actually makes the sweetness taste better, and cinnamon ties all the flavors together like magic.
  • Mashed ripe bananas (3 medium, about 1 cup): Use bananas that are brown and spotty, not yellow—they're sweeter and easier to mash into silky submission.
  • Creamy peanut butter (½ cup): Natural peanut butter works, but the creamy, conventional kind distributes more evenly and creates a better texture.
  • Light brown sugar (½ cup, packed): Don't skimp on packing it down; the molasses in brown sugar adds depth that white sugar can't match.
  • Neutral oil (¼ cup): Canola or sunflower oil keeps the bread moist for days without making it feel heavy.
  • Eggs (2 large): They bind everything together and add richness—bring them to room temperature if you remember, but your bread won't fail if you forget.
  • Vanilla extract (1 tsp): Pure vanilla matters more here than in some recipes because you actually taste it.
  • Semisweet chocolate chips (¾ cup): These are the little pockets of joy that make people come back for second slices; don't cheap out on quality.
  • Chopped roasted peanuts (¼ cup, optional): They add a pleasant crunch and genuine peanut flavor that complements the peanut butter beautifully.

Instructions

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Heat your oven and prepare the pan:
Preheat to 350°F and grease a 9x5-inch loaf pan, then line it with parchment paper so your finished bread slides out without drama. This step takes two minutes and saves you from frustration.
Combine your dry team:
In a large bowl, whisk together the flour, oats, baking soda, baking powder, salt, and cinnamon until everything looks evenly distributed. The whisking motion incorporates air and prevents clumpy surprises later.
Mix the wet ingredients into a smooth base:
In another bowl, combine the mashed bananas, peanut butter, brown sugar, oil, eggs, and vanilla, then whisk until the mixture is smooth and relatively lump-free. The peanut butter might resist at first, but keep whisking and it'll surrender.
Bring wet and dry together gently:
Pour the wet ingredients into the dry bowl and mix with a spatula using just enough strokes to barely combine everything—you want streaks of flour still visible. Overmixing develops gluten, which makes banana bread tough and dense, the opposite of what you want.
Fold in the chocolate and peanuts:
Add the chocolate chips and peanuts with a few gentle folds, reserving a small handful to sprinkle on top for looks and extra flavor pockets. Don't stress about perfect distribution; the chips will scatter throughout as you bake.
Fill the pan and get fancy:
Pour the batter into your prepared loaf pan, smooth the top with your spatula, then sprinkle those reserved chocolate chips and peanuts across the surface. They'll toast slightly and create irresistible little surprises in every slice.
Bake until golden and set:
Place the pan in the oven for 50 to 55 minutes—the bread should be deep golden brown on top and a toothpick inserted in the center should come out with just a few moist crumbs, not wet batter. If the top is browning too fast, loosely tent it with foil for the last 15 minutes.
Cool with patience:
Let the bread rest in the pan for 10 minutes so it sets enough to handle, then turn it out onto a wire rack to cool completely. This waiting period is hard but necessary; slicing warm bread makes it crumbly.
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Slice of Chocolate Chip Peanut Butter Oatmeal Banana Bread, perfect for breakfast. Save
Slice of Chocolate Chip Peanut Butter Oatmeal Banana Bread, perfect for breakfast. | oventhyme.com

My dad, who claims he doesn't like healthy food, has now eaten more slices of this bread than I have, which tells you everything you need to know about how it tastes. There's something about the combination of wholesome ingredients and indulgent chocolate that sneaks past even the pickiest eaters.

Why This Bread Stays Moist

The secret to bread that doesn't turn into cardboard is the combination of mashed bananas, oil, and peanut butter—all three contribute moisture, but in different ways. Bananas provide liquid and natural sweetness, oil coats the flour particles to trap moisture, and peanut butter adds fat that keeps everything tender even on day three. I learned this the hard way after making traditional banana bread that was delicious on day one and sad by day two.

The Chocolate Chip Situation

Chocolate chips are non-negotiable here, but the amount of them can shift depending on your mood and budget. Some days I use the full three-quarters cup and the bread becomes almost decadent, other times I back off to half a cup and add extra peanuts instead. There's no wrong answer, just different versions of delicious.

Storing, Sharing, and Making It Your Own

This bread improves slightly on day two after the flavors settle and meld together, so if you can resist eating the whole thing fresh, your patience will be rewarded. Wrapped tightly at room temperature, it keeps for three days without issue, and freezing it for up to two months means you can always have homemade bread available for unexpected moments.

  • If you want extra richness, swirl two tablespoons of peanut butter on top of the batter before baking and watch it create ribbons of flavor throughout.
  • Almond butter or sunflower seed butter swap in beautifully if peanut allergies are a concern, creating a slightly different but equally good bread.
  • Always use chocolate chips you actually like because their flavor will shine—cheap chips taste like wax, and good ones taste like a minor celebration.
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Warm Chocolate Chip Peanut Butter Oatmeal Banana Bread, ready for sharing. Save
Warm Chocolate Chip Peanut Butter Oatmeal Banana Bread, ready for sharing. | oventhyme.com

This bread has become my default gift and my go-to when I need something that tastes like I tried harder than I actually did. It's the kind of recipe that feels like a small act of kindness every time you make it.

Kitchen Guide

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

Yes, quick oats work well in this bread, though the texture may be slightly less hearty. Old-fashioned oats provide better structure and a chewier bite.

How do I know when the bread is fully baked?

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

Can I make this without peanut butter?

Absolutely. Almond butter, sunflower seed butter, or even tahini make great substitutes. The flavor profile will shift slightly but remain delicious.

Should I use brown or black bananas?

Brown-spotted bananas are ideal—sweet and flavorful. Completely black bananas work too but may make the bread denser and more intensely banana-forward.

Can I freeze this bread?

Yes, wrap cooled slices tightly in plastic and freeze for up to 2 months. Thaw at room temperature or warm briefly in the microwave.

Why did my bread turn out dense?

Overmixing the batter can develop too much gluten, leading to a dense texture. Mix just until combined—some streaks of flour are fine before folding in the add-ins.

Chocolate Chip Peanut Butter Oatmeal Banana Bread

A moist, hearty loaf packed with bananas, peanut butter, oats, and chocolate chips—ideal for breakfast or anytime snacking.

Prep duration
15 min
Kitchen time
55 min
Complete duration
70 min
Created by Grace Mitchell


Skill level Easy

Heritage American

Output 10 Portions

Dietary requirements Meat-free

What you'll need

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 such as 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

Method

Phase 01

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

Phase 02

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

Phase 03

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

Phase 04

Merge wet and dry mixtures: Pour wet ingredients into dry ingredients. Fold gently with a spatula until just combined, avoiding overmixing to maintain tender crumb structure.

Phase 05

Incorporate mix-ins: Fold in chocolate chips and peanuts, reserving a small amount for sprinkling on top if desired.

Phase 06

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

Phase 07

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

Phase 08

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

Kitchen tools needed

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

Allergy notes

Always review ingredients for potential allergens and seek professional medical advice when uncertain.
  • Contains peanuts, eggs, and gluten from wheat flour
  • May contain dairy depending on chocolate chip brand selection
  • For nut allergies, use sunflower seed butter and omit peanuts
  • Always verify chocolate chip packaging for potential allergens and cross-contamination warnings

Nutrition breakdown (per portion)

Values shown are estimates only - consult healthcare providers for specific advice.
  • Energy: 275
  • Fats: 12 g
  • Carbohydrates: 38 g
  • Proteins: 6 g