Peanut Butter Banana Bars

Category: Let's Bake Something Wonderful

Fast, customizable bars made with bananas, oats, and peanut butter. Ready in 35 minutes, ideal for on-the-go snacks.
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By Sophie Parker Sophie Parker
Updated on Tue, 13 May 2025 11:12:53 GMT
Banana Peanut Butter Bars Save
Banana Peanut Butter Bars | tastybysophie.com

Take a bite of these tender, melt-in-your-mouth bars that bring together the natural sweetness of overripe bananas with silky peanut butter, filling oats, and decadent chocolate chips. These nutritious treats take just minutes to throw together using stuff you've already got in your kitchen, making them awesome for rushed mornings or when you need something to curb your afternoon hunger. They're naturally sweet, loaded with protein, and super adaptable.

I whipped up these bars for my yoga buddies last week, and they were gone in a flash. The mix of protein from the peanut butter and slow-burning carbs in the oats kept our energy levels up during our whole session.

Amazing Ingredients

  • Overripe Bananas: Go for the ones with plenty of brown speckles - they're much sweeter and mash up easier
  • Natural Peanut Butter: Pick the runny, creamy kind without extra oils or sugar mixed in
  • Quick-Cooking Oats: They give you that perfect chewy bite while adding tons of fiber and lasting fullness
  • Dark Chocolate Chips: Their touch of bitterness works perfectly with the natural banana sweetness
Peanut Butter Banana Bars Recipe Save
Peanut Butter Banana Bars Recipe | tastybysophie.com

Step-by-Step Guide

Working with Bananas:
Smash those spotty bananas until mostly smooth but keep some tiny chunks for better texture
Mixing Process:
Stir in peanut butter and vanilla until everything's well combined into a smooth, velvety mixture
Adding Oats:
Add the oats bit by bit, mixing just enough to combine so they don't lose their hearty texture
Handling Chocolate:
Save some chips to sprinkle on top - they'll turn into beautiful melty pools of chocolate
Filling the Pan:
Push the mixture all the way into the corners and smooth the top so it bakes evenly
Finishing Touch:
Scatter the leftover chocolate chips on top, lightly pressing them into the batter

My little girl found out these bars taste amazing when crumbled over yogurt, creating what she calls her dream breakfast. We always make extra batches now just for this.

Tasty Breakfast Options

Enjoy them warm with a spoonful of Greek yogurt, alongside your morning joe, or wrapped up to eat on your commute. They're also great before a workout or tucked into a lunch box.

Easy Substitutions

Switch things up by using chunky peanut butter for some crunch, swap in almond butter for a different taste, or throw in some coconut flakes for a tropical twist. Make them school-friendly by using sunflower seed butter instead.

Keeping Them Fresh

These bars will stay fresh in an airtight container on your counter for about three days. If you want them to last longer, wrap each one separately and pop them in the freezer for up to three months. They'll thaw perfectly if you leave them in the fridge overnight.

I've played around with healthy snack recipes for years, and these bars are what I always suggest to new parents and people with packed schedules. They show that good-for-you food can be both super easy to make and actually tasty - that's a rare combo that makes these bars really stand out.

Getting The Perfect Texture

Nailing the right texture comes down to balancing your ingredients just right. Too much banana makes the middle soggy, while too many oats leaves you with dry, crumbly bars. Watch the consistency as you mix - it should be thick but still easy to spread. If your mix looks too wet, add oats one tablespoon at a time. If it's too dry, a splash of plant milk will fix it right up.

Picking The Right Bananas

The bananas you choose really matter for these bars. Look for ones with tons of spots or even completely black skins. These super ripe bananas don't just add natural sweetness but also keep the bars moist. The enzymes have turned all the starch into sugar, giving you that deep, rich flavor that makes everybody come back for seconds.

Ingredient Temperature Tips

Your ingredients will mix together way better at room temperature than when cold. If your peanut butter's been in the fridge, let it warm up before using it. This way it'll blend smoothly with your mashed bananas and you won't get any unmixed clumps in your finished bars. The same goes for eggs if you decide to add them to help bind everything together.

Getting Your Oven Ready

Put your oven rack right in the middle. Heat it up to 350°F (175°C). Making sure your oven's properly heated helps everything bake evenly and prevents soggy centers.

Preparing Your Pan

Put parchment paper in your 9x5 inch loaf pan, letting it hang over the long sides. This creates little handles so you can lift the bars out easily after baking.

Peanut Butter Banana Bars Homemade Save
Peanut Butter Banana Bars Homemade | tastybysophie.com

Prepping Your Bananas

Pick three really ripe bananas. Peel them and drop them in a big mixing bowl. Use a fork to mash them until they're mostly smooth but still have some small lumps for better texture.

Creating The Base Mixture

Add your room temperature peanut butter and vanilla extract to the mashed bananas. Stir everything together until it's completely mixed with no streaks left behind.

Adding The Dry Stuff

Scatter your oats, salt, and baking powder over the wet ingredients. Fold them in gently with a spatula just until everything's mixed. Don't overdo it or your bars might turn out tough.

Recipe FAQs

→ How ripe should the bananas be?
The best ones have lots of black spots for natural sweetness. Speed things up with an oven if needed.
→ What peanut butter works best?
Go for creamy, natural peanut butter for smooth results. If it’s too thick, adjust the oats.
→ Can other spreads be used?
Sure! Almond butter or sunflower seed butter are great choices too.
→ Got mix-in ideas?
Go wild—add cinnamon, nuts, coconut, seeds, or even pureed pumpkin.
→ What's the best storage method?
Keep them in a sealed container. For longer freshness, stick them in the fridge.

Banana Peanut Butter Bars

Simple, chewy bars with a mix of oats, banana, and creamy peanut butter sweetened naturally with optional add-ins like chocolate.

Prep Time
5 min
Cook Time
30 min
Total Time
35 min
By Sophie Parker: Sophie Parker

Category: Sweet Kitchen

Skill Level: Beginner

Cuisine: American

Yield: 8 Servings (8 bars)

Dietary Preferences: Vegan, Vegetarian, Gluten-Free, Dairy-Free

Ingredients

→ Base

01 1/2 cup chocolate chunks
02 1/4 teaspoon fine salt
03 1/2 teaspoon baking powder
04 1 1/4 cups fast-cooking oats
05 1 teaspoon pure vanilla
06 3 super soft bananas
07 1/4 cup creamy unsweetened peanut butter

Steps

Step 01

Set oven to 350°F. Line or lightly oil your pan.

Step 02

Smash the bananas until there are no chunks left. Stir in the peanut butter and vanilla until smooth.

Step 03

Stir in the oats, baking powder, and a pinch of salt. Gently mix in about 1/3 cup of the chocolate chunks.

Step 04

Spread the mix evenly into the pan, sprinkle the rest of the chocolate on top. Bake 25–30 minutes or until a knife comes out clean.

Step 05

Cool completely before slicing into 6 to 8 portions.

Notes

  1. Switch the peanut butter for another nut butter if you'd like.
  2. You can mix in extras to make it your own!
  3. Extra ripe bananas give it the sweetness you need.

Required Tools

  • Baking pan (loaf style)
  • Bowl for mixing
  • Parchment or baking paper

Allergy Information

Check each ingredient for potential allergens and consult a healthcare professional if needed.
  • Has nuts (peanut butter included)

Nutritional Facts (per serving)

These details are provided for informational purposes and aren't a substitute for medical advice.
  • Calories: ~
  • Fats: ~
  • Carbohydrates: ~
  • Proteins: ~