Peanut Butter Banana Oat Bars

Featured in: Weekend Cabin-Style Comforts

These no-bake bars combine mashed ripe bananas with creamy peanut butter, honey or maple syrup, and old-fashioned oats to create a chewy, nourishing snack. Optional additions like nuts and chocolate chips add texture and flavor. Simply mix all ingredients, press the blend into a pan, then chill until firm. Ideal for a quick energy boost without any baking, these bars can be stored refrigerated and make a convenient, wholesome treat on the go.

Updated on Tue, 23 Dec 2025 10:41:00 GMT
Golden, no-bake peanut butter banana oat bars, a wholesome snack, ready to grab. Save
Golden, no-bake peanut butter banana oat bars, a wholesome snack, ready to grab. | junipercrumb.com

I discovered these bars during a particularly chaotic Tuesday morning when I was staring at my pantry, desperate for something to grab before work. My banana situation was dire—three spotted ones on the counter that needed rescuing—and I remembered a friend mentioning no-bake energy bars years ago. Thirty minutes later, I had twelve perfectly chewy squares that tasted like someone had bottled comfort and possibility. That first taste, with the peanut butter catching on my teeth and the banana lending its gentle sweetness, made me forget about the morning rush entirely. Now they're my answer to almost every "I need something in my bag" moment.

I made these for my sister's hiking trip last summer, and she texted me from mile three saying they were the best decision she'd made all day. She'd wrapped them in foil individually, and apparently they were getting passed around the whole trail group like contraband. There's something special about feeding people food that fits in their pocket and doesn't require any of those awkward wrapper situations.

Ingredients

  • Ripe bananas: Use ones with lots of brown spots—they mash easier and taste sweeter, which is where all the magic happens.
  • Creamy peanut butter: The kind that's just peanuts and maybe a pinch of salt, not the spreadable stuff with twelve ingredients you can't pronounce.
  • Honey or maple syrup: This is your binder and sweetener rolled into one, and it affects the final texture more than you'd think.
  • Vanilla extract: A small amount that whispers in the background rather than shouting.
  • Old-fashioned rolled oats: The real kind with visible oat pieces, not the quick-cook variety that disappears into mush.
  • Walnuts or pecans: Optional, but they add a subtle earthiness that makes people ask what the secret ingredient is.
  • Mini chocolate chips: Optional, but when included, they create little flavor pockets that feel like tiny gifts.
  • Salt and cinnamon: These two are the unsung heroes that keep everything from tasting one-note and boring.

Instructions

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Prep your pan like you mean it:
Line your 8x8 square pan with parchment paper, making sure you leave some overhang on two sides—this is your future self's handle for easy escape. The overhang is the difference between neat bars and a crumbly mess you'll need to scrape.
Mash those bananas smooth:
Use a fork or masher to break down the bananas until they're almost liquid, with maybe a few tiny soft chunks. This takes longer than you think it should, and that's the whole point—you're building the base for everything else.
Blend the wet ingredients:
Fold the peanut butter, honey, and vanilla into your mashed bananas until it looks like a thick, clingy paste. Stir slowly at first so nothing splashes, then you can go a little faster once it's mostly combined.
Fold in the oats and mix-ins:
Add the oats, salt, cinnamon, and any nuts or chocolate chips, stirring until every strand of oat is coated in that peanut butter mixture. You'll feel the resistance change as the oats hydrate and pull everything together.
Press it into the pan:
Scrape every last bit of mixture into your prepared pan and press it down firmly with the back of a spoon or an offset spatula, working from the center outward. Use steady, deliberate pressure so the bars will hold together when you cut them later.
Chill and set:
Refrigerate for at least an hour—this is where patience becomes texture, and your bars go from soft and uncertain to firm and sliceable. If you forget about them and leave them overnight, that's even better.
Slice and store:
Use the parchment overhang to lift the whole block out, then use a sharp knife (a little warm water on the blade helps) to cut into twelve even bars. Keep them in an airtight container in the fridge, and they'll stay perfect for a week.
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There was this moment when a coworker tried one of these at her desk, and she went very quiet for a few seconds—the kind of quiet that usually means something shifted. She asked if I'd consider selling them, which made me laugh, but it also made me realize that simple things made with care register differently. Food doesn't have to be complicated to matter.

The No-Bake Beauty

There's a particular freedom in making something substantial without ever turning on the oven. On summer afternoons when heating up the kitchen feels like a punishment, or on winter mornings when you want comfort but not commitment, these bars are there. The whole process is almost meditative—you're combining things with your hands and a spoon, feeling the texture transform under your control, watching a pile of separate ingredients become something unified and trustworthy.

Flavor Combinations Worth Trying

Once you've made the base recipe a few times and know how it behaves, the variations start calling to you. I've experimented with swapping in almond butter for a lighter taste, added crushed ginger cookies for a subtle spice, and discovered that a handful of shredded coconut creates an unexpectedly sophisticated texture. A friend made them with tahini instead of peanut butter and said it was like finding an entirely new recipe hiding inside the original one.

Customization and Storage

These bars are forgiving enough that you can play around with what you have without worrying you've ruined them. They freeze beautifully too—individually wrapped squares will keep for three months, which means you can make a big batch when you're in the mood and have guilt-free snacks for the future. I keep mine in a container in the fridge organized by chocolate chip distribution because I'm apparently that person now.

  • For a vegan version, use maple syrup and dairy-free chocolate chips, and they're instantly inclusive for whoever you're feeding.
  • Wrap individual bars in parchment or foil, and they're perfect for lunch boxes, backpacks, or that moment at 3 PM when you need something real.
  • If you're dealing with nut allergies, sunflower seed butter works beautifully and tastes different enough that it feels like you invented something new.
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Creamy peanut butter banana oat bars, cut into perfect squares, promising a delicious bite. Save
Creamy peanut butter banana oat bars, cut into perfect squares, promising a delicious bite. | junipercrumb.com

These bars have become my answer to the question "What should I bring?" and also my answer to the question "What should I eat?" They're proof that you don't need much time, skill, or special equipment to make something that genuinely feeds people—body and moment both.

Your Questions Answered

Can I substitute peanut butter with other nut butters?

Yes, almond or sunflower seed butter work well as alternatives, especially for different flavor profiles or allergies.

Is it possible to make these bars vegan?

Use maple syrup instead of honey and dairy-free chocolate chips to keep the bars completely plant-based.

How long do the bars stay fresh?

Stored in an airtight container in the fridge, they remain fresh for up to one week.

Can I add dried fruits or nuts to the bars?

Yes, dried cranberries, raisins, walnuts, or pecans can be mixed in to enhance flavor and texture.

Do these bars require baking?

No baking is needed; simply mix the ingredients and chill until firm before slicing.

Peanut Butter Banana Oat Bars

Chewy bars made from peanut butter, ripe banana, and oats, perfect for a quick, wholesome snack anytime.

Time to Prep
10 mins
0
Overall Time
10 mins
Created by Brooke Taylor


Skill Level Easy

Cuisine American

Makes 12 Portions

Diet Info Vegetarian Option, Dairy-Free

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

How To Make It

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 combined.

Step 04

Incorporate dry ingredients: Add oats, salt, cinnamon, and optional nuts or chocolate chips; mix until evenly incorporated.

Step 05

Press mixture: Transfer mixture to the prepared pan and press firmly and evenly with the back of a spoon or spatula.

Step 06

Chill bars: Refrigerate for at least 1 hour or until firm enough to slice.

Step 07

Slice and store: Lift bars from pan using parchment overhang, slice into 12 bars, and store in an airtight container in the refrigerator for up to one week.

Tools Needed

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

Allergy Warning

Double-check the ingredient list for allergens, and ask your doctor if you’re uncertain.
  • Contains peanuts and may contain tree nuts (if walnuts or pecans are included).
  • Contains oats; ensure gluten-free oats if required.
  • Contains honey; not suitable for infants under 1 year.

Nutrition Details (each serving)

Nutritional details are for informational purposes only, and not a substitute for medical guidance.
  • Total Calories: 160
  • Total Fat: 7 g
  • Carbohydrates: 22 g
  • Proteins: 4 g