Peanut Banana Oat Bars

Featured in: Quick Snacks & Starters

These chewy bars blend creamy peanut butter, ripe mashed bananas, and hearty oats into a wholesome, no-bake snack. Sweetened naturally with honey or maple syrup and enhanced with warm cinnamon, they require just mixing and chilling—no baking needed. Ideal for a quick, energizing option on the go, the bars hold well in the fridge and can be customized with nuts or chocolate chips. Perfectly balanced and easy to prepare, they offer a nutritious treat for any time of day.

Updated on Wed, 24 Dec 2025 15:17:00 GMT
Chewy Peanut Butter Banana Oat Bars, showing a close-up of the delicious no-bake snack recipe. Save to Pinterest
Chewy Peanut Butter Banana Oat Bars, showing a close-up of the delicious no-bake snack recipe. | chromespoon.com

I discovered these bars by accident on a Tuesday morning when I'd forgotten to meal prep snacks and had nothing but bananas going soft on the counter. My daughter needed something for her backpack, so I threw together what I had—peanut butter, oats, honey—and pressed it into a pan. An hour later, after chilling, I cut into it and realized I'd stumbled onto something that tastes like a dessert but feels like actual nutrition. Now these are the first thing I make when life gets chaotic.

I made a double batch for my son's soccer tournament last spring, wrapping each bar individually in foil like tiny presents. Another parent tried one and asked for the recipe right there on the bleachers—that's when I knew I'd created something special that people actually wanted to eat, not just tolerate.

Ingredients

  • Ripe bananas (2 large, mashed): Use ones with brown spots—they're sweeter and blend more easily into the mixture, creating that chewy texture that makes these bars addictive.
  • Creamy peanut butter (1/2 cup): The backbone of flavor; skip the natural stuff if you want a smoother texture, though it works with either.
  • Honey or maple syrup (1/4 cup): This sweetens and binds everything; honey gives a subtler taste while maple adds earthiness.
  • Vanilla extract (1 tsp): A small dose that somehow makes peanut butter taste even more like itself.
  • Old-fashioned rolled oats (2 cups): They give you that hearty chew; instant oats will make the bars mushy, so don't swap them.
  • Chopped nuts (1/4 cup, optional): Walnuts or pecans add a pleasant crunch, and I like them for texture contrast.
  • Mini chocolate chips (1/4 cup, optional): Because sometimes you want that little hit of chocolate without making it a dessert.
  • Salt (1/4 tsp): It sounds tiny but it makes everything taste more like itself.
  • Ground cinnamon (1/2 tsp): Warming and necessary; don't skip it thinking it won't matter.

Instructions

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Set your stage:
Line your 8x8-inch pan with parchment paper and leave some hanging over the edges—this is how you'll lift the whole thing out later without destroying it. Trust me on this small step.
Mash the bananas:
Use a fork or potato masher to break them down until mostly smooth; a few tiny lumps are fine and won't hurt anything. You're aiming for the texture of thick applesauce.
Mix the wet base:
Stir the peanut butter, honey, and vanilla into your mashed banana until everything looks uniform and creamy. This part takes less than a minute if you're patient.
Combine everything:
Add the oats, salt, cinnamon, and any optional add-ins, then stir until there are no dry pockets of oats hiding anywhere. The mixture should look thick and well-incorporated.
Press into the pan:
Transfer your mixture to the lined pan and use the back of a spoon or a spatula to press it down firmly and evenly. The more pressure you apply, the better the bars will hold together when you cut them.
Chill and set:
Refrigerate for at least an hour—I usually leave mine overnight because it makes cutting cleaner and easier. You'll know it's ready when it feels firm to the touch.
Cut and store:
Use the parchment overhang to lift everything out onto a cutting board, then slice into 12 bars with a sharp knife (wet the knife between cuts for cleaner edges). Keep them in an airtight container in the fridge for up to a week.
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Homemade Peanut Butter Banana Oat Bars, offering a tempting, easy no-bake energy treat ready to eat. Save to Pinterest
Homemade Peanut Butter Banana Oat Bars, offering a tempting, easy no-bake energy treat ready to eat. | chromespoon.com

Last month my partner grabbed one of these without asking while I was working, then texted me mid-meeting asking if I'd made more. It's become the kind of snack that disappears before I plan to eat it, which somehow feels like the highest compliment a recipe can get.

Customizing Your Bars

These bars are forgiving in the best way—if you have dried cranberries instead of chocolate chips, use them. If you prefer almond butter because that's what's in your cupboard, that works too. I've made them with sunflower seed butter for a friend with allergies, and honestly, they might have been even better.

Storage and Transport

The parchment paper method isn't just for easy removal; it's also perfect for wrapping individual bars if you're packing them somewhere. I've sent these in lunch boxes, road trips, and even to work potlucks, and they hold up beautifully. Just keep them cool and they'll be exactly as you left them.

Why This Works as an Energy Snack

There's something satisfying about reaching for something wholesome that actually tastes good and keeps you full. The oats provide substance, the peanut butter delivers protein, and the banana adds natural sweetness without any weird aftertaste. You get that immediate energy boost from the honey, but it sustains because of everything else in there working together. These aren't the kind of snack you eat and regret ten minutes later.

  • Wrap individual bars in parchment for grab-and-go mornings when your brain isn't working yet.
  • These freeze beautifully if you need to make a huge batch and save them for later.
  • If they soften too much during the week, pop one in the freezer for a few minutes before eating for a better texture.
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Golden Peanut Butter Banana Oat Bars, layered with oats and banana, chilled perfectly for a healthy snack. Save to Pinterest
Golden Peanut Butter Banana Oat Bars, layered with oats and banana, chilled perfectly for a healthy snack. | chromespoon.com

These bars have quietly become the snack I reach for when I need something that feels like a small kindness to myself. They're easy enough to make on a whim but satisfying enough to feel intentional.

Recipe FAQs

Can I substitute peanut butter for another nut butter?

Yes, almond or sunflower seed butter can be used for a different flavor or to accommodate allergies.

How long should the bars chill before cutting?

Refrigerate the mixture for at least 1 hour to allow firming before slicing into bars.

Are these bars suitable for vegans?

Using maple syrup instead of honey and dairy-free chocolate chips makes this suitable for vegan diets.

Can I add dried fruits to the bars?

Yes, cranberries or raisins add extra flavor and texture when mixed in with the oats and nuts.

How should I store the bars to keep them fresh?

Store bars in an airtight container in the fridge for up to one week for optimal freshness.

Peanut Banana Oat Bars

Wholesome bars combining peanut butter, banana, and oats for a tasty, no-bake energy boost.

Prep time
10 minutes
0
Overall time
10 minutes
Recipe by Marissa Cook


Skill level Easy

Cuisine American

Portion size 12 Portions

Dietary info Vegetarian-friendly, Without dairy

What You'll Need

Wet Ingredients

01 2 large ripe bananas, mashed
02 1/2 cup creamy peanut butter
03 1/4 cup honey or maple syrup
04 1 teaspoon vanilla extract

Dry Ingredients

01 2 cups old-fashioned rolled oats
02 1/4 cup chopped walnuts or pecans (optional)
03 1/4 cup mini chocolate chips (optional)
04 1/4 teaspoon salt
05 1/2 teaspoon ground cinnamon

Directions

Step 01

Prepare Pan: Line an 8x8-inch square baking pan with parchment paper, leaving an overhang for easy removal.

Step 02

Mash Bananas: In a large bowl, mash the bananas until smooth.

Step 03

Combine Wet Ingredients: Add peanut butter, honey or maple syrup, and vanilla extract to the mashed bananas. Stir until well incorporated.

Step 04

Add Dry Ingredients: Stir in oats, salt, cinnamon, and any optional mix-ins such as nuts or chocolate chips until evenly distributed.

Step 05

Press Mixture: Transfer the mixture into the prepared pan and press firmly and evenly using a spatula or the back of a spoon.

Step 06

Chill Bars: Refrigerate for at least 1 hour, or until firm enough to cut.

Step 07

Slice and Store: Lift the set mixture using the parchment overhang and slice into 12 bars. Store in an airtight container in the refrigerator for up to 1 week.

Needed equipment

  • Mixing bowl
  • Masher or fork
  • Spatula
  • 8x8-inch square baking pan
  • Parchment paper
  • Knife

Allergy Notes

Double-check your ingredients for allergens and always talk to your doctor if you're not sure.
  • Contains peanuts and may contain tree nuts if walnuts or pecans are used. Contains oats; use certified gluten-free oats if necessary. Contains honey, not suitable for infants under one year.

Nutrition details (per portion)

Use these nutrition facts for reference—they don't replace advice from your doctor.
  • Energy (kcal): 160
  • Fat content: 7 grams
  • Carbohydrates: 22 grams
  • Proteins: 4 grams