Peanut Butter Banana Oat Bars

Featured in: Baking & Sweet Ideas

These chewy bars combine creamy peanut butter, ripe bananas, and hearty oats with a subtle cinnamon twist. Quick to prepare without baking, they chill to a firm texture and slice into convenient portions. Ideal for a nourishing snack that travels well, with optional nuts or chocolate chips to customize flavor. Vegan substitutions and added dried fruit are simple ways to vary the taste.

This energy bar offers a balanced mix of wholesome ingredients for a tasty boost anytime. Preparation involves mashing bananas and mixing them with peanut butter, sweetener, oats, and spices, followed by chilling until firm. A straightforward no-bake approach delivers satisfying chew and flavor without oven time.

Updated on Wed, 24 Dec 2025 15:57:00 GMT
Chewy Peanut Butter Banana Oat Bars, offering a sweet, wholesome no-bake snack with visible nuts. Pin this
Chewy Peanut Butter Banana Oat Bars, offering a sweet, wholesome no-bake snack with visible nuts. | platesignal.com

There's something magical about a snack that requires nothing but a bowl and your hands. I discovered these bars on a Tuesday morning when my pantry was nearly bare—just some oats, a browning banana, and a jar of peanut butter left from last week's lunches. What started as improvisation became the kind of thing I now make twice a month, always with the same sense of quiet satisfaction that comes from creating something wholesome without firing up the oven.

My neighbor asked for the recipe after finding one in my kitchen, wrapped in foil with a handwritten label, and I remember her surprise when I told her it was no-bake. She brought them to a book club and texted me a photo of an empty container—that's when I knew I had something worth sharing, something that proves you don't need complicated steps or fancy equipment to feed the people around you.

Ingredients

  • Ripe bananas (2 large): Use ones that are speckled and soft, where the sweetness has concentrated—green ones will make the bars taste starchy instead of naturally sweet.
  • Creamy peanut butter (1/2 cup): The kind that's mostly peanuts and oil, not the super-stabilized versions; it blends more smoothly and tastes honest.
  • Honey or maple syrup (1/4 cup): Either works, though honey binds a touch firmer—maple syrup gives a deeper, almost earthy note that plays beautifully with the nuts.
  • Vanilla extract (1 tsp): Just enough to round out the flavors without announcing itself; don't skip it because it's small.
  • Old-fashioned rolled oats (2 cups): The thick-cut ones that you can actually see in your bars, not the instant kind that dissolves into paste.
  • Walnuts or pecans (1/4 cup, chopped, optional): Add a buttery crunch and nutrition; I often throw them in because they make the bars feel more substantial.
  • Mini chocolate chips (1/4 cup, optional): More for texture than flavor—they soften in the fridge and create little pockets of sweetness.
  • Salt (1/4 tsp): Cuts through the richness and makes every other flavor pop without tasting salty.
  • Ground cinnamon (1/2 tsp): Warming and essential; it ties the whole flavor profile together and hints at comfort.

Instructions

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Prepare your pan:
Line an 8x8-inch pan with parchment paper, letting it hang over the edges like a safety net—this is how you'll lift the finished bars out cleanly, without crumbling.
Mash the bananas:
Use a fork and go until they're creamy with maybe a few tiny soft lumps; you want structure, not baby food. This takes about a minute and is oddly meditative.
Build the wet base:
Stir the peanut butter, honey, and vanilla into the bananas until it looks like a uniform paste—this is your binder, so don't rush it.
Mix in the dry ingredients:
Add the oats, cinnamon, salt, and any mix-ins you're using, stirring until every oat is coated and the mixture holds together when you squeeze a handful. It should feel dense but not stiff.
Press into the pan:
Use the back of a spoon or spatula to press the mixture evenly and firmly into your lined pan, filling corners and flattening the top. The pressure matters—too loose and they'll crumble when you cut them.
Chill until set:
Refrigerate for at least an hour, though overnight is even better; the bars firm up and the flavors deepen slightly as they sit.
Cut and store:
Lift the whole block out using the parchment overhang, place it on a cutting board, and slice into 12 squares with a sharp knife, wiping the blade between cuts if it gets sticky. Store them in an airtight container in the fridge for up to a week, or freeze for longer.
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Prep ingredients, rinse produce, and dry dishes efficiently with a built-in workstation designed for streamlined cooking.
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Homemade Peanut Butter Banana Oat Bars, showing a cut bar revealing a dense texture with chocolate chips. Pin this
Homemade Peanut Butter Banana Oat Bars, showing a cut bar revealing a dense texture with chocolate chips. | platesignal.com

The best moment was watching my kid's face when she realized that something she thought was a 'healthy snack' actually tasted like peanut butter and chocolate, that food doesn't have to choose between nourishing you and making you happy. That's when this recipe stopped being just about convenience and became something I want to pass along.

Making Them Your Own

The beauty of these bars is how forgiving they are—they're a template, not a strict mandate. I've made them with almond butter on mornings when the peanut jar was empty, and they were softer, more delicate, almost nutty in a different way. My sister adds dried cranberries, which gives a tartness that cuts through the sweetness perfectly. The chocolate chips are there if you want them, but they're not required; sometimes I skip them entirely and the bars taste cleaner, purer somehow.

Storage and Travel

These bars are made for real life—they don't crumble in backpacks, they don't require refrigeration if you're only gone a few hours, and they taste just as good on day five as day one. I wrap them individually in parchment paper and toss them into my bag, and they're there when I need them, no package required. They're the kind of snack that feels like self-care because you made it yourself, but they're practical enough that you actually eat them.

Flexibility and Variations

Once you understand how these bars work—mashed fruit binding with nut butter and oats—you start seeing infinite versions. I've experimented with apple butter in place of banana, though the texture shifts toward denser. A drizzle of melted chocolate on top after chilling transforms them into something that feels fancy without any extra effort. The point is, make them once, then make them however feels right for your kitchen and your cravings, because the core recipe is strong enough to carry whatever you want to add.

  • For vegan versions, swap honey for maple syrup and use dairy-free chocolate chips.
  • Try almond or sunflower seed butter if you're looking for something different from peanut.
  • Store extras in the freezer and they'll thaw to perfect eating temperature in about 20 minutes.
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These Peanut Butter Banana Oat Bars served cold, featuring a naturally sweet treat, perfect for a fast breakfast. Pin this
These Peanut Butter Banana Oat Bars served cold, featuring a naturally sweet treat, perfect for a fast breakfast. | platesignal.com

These bars have become my answer to the question of how to eat well without it feeling like a chore, how to make something that nourishes and comforts at once. I hope they become yours too.

Recipe Questions

How do I achieve the right texture without baking?

Chilling the mixture in the fridge for at least an hour allows the ingredients to firm up, creating a chewy texture without baking.

Can I substitute the peanut butter with another nut butter?

Yes, almond or sunflower seed butter can be used as alternatives to peanut butter for different flavors or dietary needs.

Are there options to make these bars vegan?

Use maple syrup instead of honey and select dairy-free chocolate chips to keep the bars vegan-friendly.

How can I add more flavor to these bars?

Incorporate dried fruits like cranberries or raisins, or include nuts and mini chocolate chips for enhanced taste and texture.

What is the best way to store these bars?

Store in an airtight container in the refrigerator for up to one week to maintain freshness and texture.

Peanut Butter Banana Oat Bars

Chewy bars with peanut butter, ripe banana, oats, and cinnamon. Perfect for quick, no-bake energy boost.

Prep time
10 min
0
Total duration
10 min
Created by Carson Hughes


Skill level Easy

Cuisine American

Yields 12 Portions

Dietary notes Vegetarian, Dairy free

What You 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 tsp 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 tsp salt
05 1/2 tsp 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 fully combined.

Step 04

Incorporate dry ingredients: Add oats, salt, cinnamon, and optional nuts or chocolate chips. Mix until evenly distributed throughout the mixture.

Step 05

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

Step 06

Chill until firm: Refrigerate for at least 1 hour, or until the mixture is set and firm enough to cut.

Step 07

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

What You'll Need

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

Allergy details

Please review each ingredient for possible allergens. Check with a health specialist if uncertain.
  • Contains peanuts and may contain tree nuts if walnuts or pecans are included.
  • Contains oats; use certified gluten-free oats if gluten intolerance is a concern.
  • Contains honey, not suitable for infants under 1 year.

Nutrition info (per serving)

These nutrition stats are for general info and not a substitute for professional advice.
  • Calories: 160
  • Total fat: 7 g
  • Carbohydrates: 22 g
  • Proteins: 4 g