4-Ingredient Peanut Butter Banana Bars

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4-Ingredient Peanut Butter Banana Bars
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These 4-Ingredient Peanut Butter Banana Bars are the perfect blend of simplicity and flavor. Packed with wholesome ingredients like ripe bananas, creamy peanut butter, oats, and a touch of sweetness, they’re the ideal healthy snack or breakfast on the go. No refined sugar, no flour—just delicious goodness in every bite!

4-Ingredient Peanut Butter Banana Bars

I discovered this recipe on a busy morning when I was looking for a quick breakfast idea that would please my family. With a bunch of overripe bananas on the counter, this recipe was the perfect solution. My husband and kids couldn’t believe these bars only had four ingredients! Now, we make them regularly as a grab-and-go treat, and they’re always a hit in our house.

Why You’ll Love 4-Ingredient Peanut Butter Banana Bars

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Quick & Easy: Just four ingredients and minimal prep make this recipe a breeze.

Healthy & Satisfying: Naturally sweetened and full of wholesome ingredients.

Kid-Friendly: The perfect snack for kids’ lunchboxes or an after-school treat.

Vegan & Gluten-Free: Naturally vegan and gluten-free (if using certified gluten-free oats).

4-Ingredient Peanut Butter Banana Bars

Ingredients Notes for 4-Ingredient Peanut Butter Banana Bars

Bananas: Use ripe or overripe bananas for the best natural sweetness.

Peanut Butter: Choose creamy or chunky based on your preference—both work well.

Rolled Oats: Use regular rolled oats for a chewier texture or quick oats for a softer bar.

Maple Syrup (optional): Add a touch of maple syrup or honey if you prefer a sweeter bar.

4-Ingredient Peanut Butter Banana Bars

Recipe Steps

1. Preheat Oven:

•Preheat your oven to 350°F (175°C) and line an 8×8-inch baking dish with parchment paper.

2. Mash Bananas:

•In a mixing bowl, mash 3 ripe bananas until smooth.

3. Mix Ingredients:

•Add 1 cup of peanut butter, 2 cups of rolled oats, and 2 tbsp of maple syrup (if using) to the mashed bananas. Stir until well combined.

4. Spread & Bake:

•Spread the mixture evenly into the prepared baking dish and bake for 20-25 minutes, or until the edges are golden brown.

5. Cool & Slice:

•Let the bars cool completely before slicing into squares or bars.

4-Ingredient Peanut Butter Banana Bars

Storage Options

Refrigerate: Store in an airtight container in the fridge for up to a week.

Freeze: Wrap individual bars in plastic wrap, then place in a freezer-safe bag for up to 2 months. Thaw overnight in the fridge or microwave for a quick snack.

Variations & Substitutions

Add Chocolate Chips: Sprinkle chocolate chips into the mixture before baking for a sweet twist.

Nut-Free Option: Swap peanut butter for sunflower seed butter to make these bars nut-free.

Add Nuts or Seeds: Mix in chopped nuts, chia seeds, or flaxseeds for extra texture and nutrition.

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4-Ingredient Peanut Butter Banana Bars

4-Ingredient Peanut Butter Banana Bars

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Course: Dessert, Snack
Kitchen: American
Prep Time: 10 minutes
Cook Time: 15 minutes
Total Time: 25 minutes
Servings: 12 bars

Ingredients
 

  • 2 ripe bananas mashed
  • 1 cup peanut butter creamy or crunchy
  • 1 cup oats old-fashioned or quick oats
  • 1/3 cup honey or maple syrup

Instructions

  • Preheat Oven: Preheat your oven to 350°F (175°C). Grease or line an 8x8-inch baking pan with parchment paper.
  • Mix Ingredients: In a mixing bowl, combine the mashed bananas, peanut butter, oats, and honey. Mix until well combined and a thick batter forms.
  • Spread in Pan: Pour the mixture into the prepared baking pan and spread it evenly, smoothing the top with a spatula.
  • Bake: Bake in the preheated oven for 15-20 minutes, or until the bars are set and the edges are lightly golden.
  • Cool and Cut: Once baked, remove from the oven and allow to cool in the pan for about 10 minutes. Then lift the bars out using the parchment paper and transfer them to a wire rack to cool completely before cutting into squares.
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Featured Comments

“Impressed! Clear steps and so flavorful results. Perfect for busy nights.”
★★★★★ today Nora
“Impressed! Clear steps and will make again results. Perfect for busy nights.”
★★★★☆ 8 days ago Grace
“This weeknight winner recipe was will make again — the wholesome really stands out. Thanks!”
★★★★☆ 3 weeks ago Aurora
“Made this last night and it was will make again. Loved how the saucy came together.”
★★★★★ 2 weeks ago Olivia
“Impressed! Clear steps and so flavorful results. Perfect for busy nights.”
★★★★★ yesterday Mia
“Super easy and so flavorful! My family asked for seconds. Saving this one.”
★★★★★ 7 days ago Ava
“Made this last night and it was family favorite. Loved how the hearty came together.”
★★★★☆ 3 weeks ago Aria
“New favorite here — turned out amazing. comforting was spot on.”
★★★★☆ 3 weeks ago Emma
“Super easy and turned out amazing! My family asked for seconds. Saving this one.”
★★★★☆ 9 days ago Lily
“Super easy and family favorite! My family asked for seconds. Saving this one.”
★★★★☆ 4 weeks ago Scarlett

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