4 Ingredient Peanut Butter Banana Bars Recipe
Introduction
These 4 Ingredient Peanut Butter Banana Bars are a quick and delicious treat perfect for any time of day. Combining ripe bananas, creamy peanut butter, oats, and a touch of chocolate, they’re wholesome and satisfying. Simple to make, they’re ideal for breakfast, snacks, or dessert.

Ingredients
- 3 very ripe bananas
- 1/4 cup smooth (natural) peanut butter
- 1 teaspoon vanilla extract
- 1 1/4 cup instant or quick cooking oats
- 1/4 teaspoon salt
- 1/2 teaspoon baking powder
- 1/2 cup chocolate chips
Instructions
- Step 1: Preheat the oven to 350°F (175°C). Grease a loaf pan or line it with parchment paper for easy removal.
- Step 2: In a large bowl, mash the bananas until almost smooth. Stir in the peanut butter and vanilla extract until well combined.
- Step 3: Add the oats, salt, and baking powder to the banana mixture and stir until everything is evenly mixed. Fold in 1/3 cup of chocolate chips, saving the rest for topping.
- Step 4: Pour the batter into the prepared loaf pan, smoothing the top with a spoon or spatula. Sprinkle the remaining chocolate chips evenly over the surface.
- Step 5: Bake for 25-30 minutes, or until a knife inserted into the center comes out clean. Remove from oven and let cool before cutting into 6-8 bars.
Tips & Variations
- Use natural peanut butter without added sugar for a healthier option.
- Swap chocolate chips for chopped nuts or dried fruit for different flavors and textures.
- Ensure bananas are very ripe for the best sweetness and moisture.
- For a gluten-free version, use certified gluten-free oats.
Storage
Store the bars in an airtight container at room temperature for up to 3 days. For longer storage, refrigerate for up to a week or freeze for up to 2 months. Reheat briefly in the microwave to enjoy them warm, if desired.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use old-fashioned oats instead of quick oats?
Yes, you can use old-fashioned oats, but the texture will be chewier and the bars might be a bit denser. For best results, pulse old-fashioned oats briefly in a food processor to break them down slightly.
Are these bars suitable for a vegan diet?
Yes, as long as you use vegan-friendly chocolate chips and natural peanut butter without any animal-derived ingredients, these bars are vegan-friendly.
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4 Ingredient Peanut Butter Banana Bars Recipe
- Total Time: 35-40 minutes
- Yield: 6–8 bars 1x
- Diet: Vegetarian
Description
These 4 Ingredient Peanut Butter Banana Bars are a simple, wholesome treat combining ripe bananas, smooth peanut butter, oats, and chocolate chips for a naturally sweet and satisfying snack. Perfect for breakfast on-the-go or a nutritious dessert, these bars are quick to prepare and baked to golden perfection.
Ingredients
Wet Ingredients
- 3 very ripe bananas
- 1/4 cup smooth (natural) peanut butter
- 1 teaspoon vanilla extract
Dry Ingredients
- 1 1/4 cup instant or quick cooking oats
- 1/4 teaspoon salt
- 1/2 teaspoon baking powder
Add-ins
- 1/2 cup chocolate chips
Instructions
- Preheat the oven: Preheat your oven to 350°F (175°C). Prepare a loaf pan by greasing it lightly or lining it with parchment paper to prevent sticking.
- Mash the bananas: In a large bowl, mash the very ripe bananas until they are almost smooth with minimal lumps left to ensure a consistent texture.
- Combine wet ingredients: Add the smooth peanut butter and vanilla extract to the mashed bananas and mix thoroughly until well combined and creamy.
- Incorporate dry ingredients: To the banana mixture, add the instant or quick cooking oats, salt, and baking powder. Mix everything together until fully combined, then gently fold in one-third of the chocolate chips, reserving the rest for topping.
- Transfer and top: Pour the batter into the prepared loaf pan. Use a spoon or spatula to smooth the surface evenly. Sprinkle the remaining chocolate chips on top to add a delicious finishing touch.
- Bake the bars: Place the loaf pan in the preheated oven and bake for 25 to 30 minutes. Test for doneness by inserting a knife into the center; it should come out clean when the bars are cooked through.
- Cool and serve: Remove from the oven and allow the bars to cool completely in the pan. Once cooled, slice into 6 to 8 pieces and serve as a nutritious snack or breakfast option.
Notes
- Use very ripe bananas for natural sweetness and better texture.
- You can substitute chocolate chips with nuts or dried fruit if preferred.
- Store bars in an airtight container at room temperature for up to 3 days or refrigerate for up to a week.
- For a gluten-free option, make sure to use certified gluten-free oats.
- These bars can be frozen for up to 2 months; thaw before serving.
- Prep Time: 10 minutes
- Cook Time: 25-30 minutes
- Category: Snack
- Method: Baking
- Cuisine: American
Keywords: peanut butter banana bars, easy snack, healthy bars, banana oat bars, quick breakfast bars, chocolate chip bars

