Peanut Butter Banana Bars Recipe

Peanut butter banana bars are a wholesome, comforting baked treat made with ripe bananas, creamy peanut butter, and simple pantry ingredients. These bars are naturally sweet, rich in flavor, and incredibly satisfying—making them perfect for breakfast, snacks, lunchboxes, or healthy desserts.

They perform exceptionally well because they are:

• Easy and beginner-friendly
  
• Naturally sweetened with bananas
  
• Visually cozy and rustic
  
• Ideal for meal prep and family baking

Why Peanut Butter Banana Bars Are So Popular

These bars consistently trend because they offer:

•  Natural sweetness from ripe bananas
  
•  Creamy, nutty richness
  
•  Soft and chewy texture
  
•  Quick prep with no fancy equipment
  
•  High save-rate on Pinterest
  

Peanut Butter Banana Bars Ingredients

Wet Ingredients

• 2 ripe bananas, mashed
  
• ½ cup creamy peanut butter (natural preferred)
  
• ¼ cup honey or maple syrup
  
• 1 large egg
  
• 1 teaspoon vanilla extract
  

Dry Ingredients

• 1½ cups rolled oats or oat flour
  
• ½ teaspoon baking powder
  
• ½ teaspoon ground cinnamon
  
• ¼ teaspoon salt
  

Optional Add-Ins

• ½ cup chocolate chips
  
• ¼ cup chopped nuts
  
• 1 tablespoon chia or flax seeds

Equipment Needed

• Mixing bowls
  
• Fork or potato masher
  
• 8×8-inch baking pan
  
• Parchment paper
  
• Spatula

How to Make Peanut Butter Banana Bars (Step-by-Step)

Step 1: Preheat the Oven

Preheat oven to 350°F (175°C). Line baking pan with parchment paper.

Step 2: Mash the Bananas

In a large bowl, mash bananas until smooth.

Step 3: Mix Wet Ingredients

Add peanut butter, honey (or maple syrup), egg, and vanilla. Mix until well combined.

Step 4: Add Dry Ingredients

Stir in oats, baking powder, cinnamon, and salt until a thick batter forms.

Step 5: Add Optional Mix-Ins

Fold in chocolate chips or nuts if using.

Step 6: Bake

Spread batter evenly in pan. Bake for 18–22 minutes, until set in the center.

Step 7: Cool and Slice

Allow bars to cool completely before slicing into squares.

Expert Tips for Perfect Banana Bars

• Use very ripe bananas for maximum sweetness
  
• Natural peanut butter gives best flavor
  
• Do not overbake—bars should stay soft
  
• Chill before slicing for clean edges

Nutrition Information (Approx. Per Bar)

• Calories: 190
  
• Carbohydrates: 22g
  
• Protein: 6g
  
• Fat: 9g
  
• Fiber: 3g
  
• Sugar: 9g

Peanut Butter Banana Bars Variations

Healthy Breakfast Bars

Use oat flour and skip sweeteners entirely.

Vegan Version

Replace egg with flax egg (1 tbsp flax + 3 tbsp water).

Chocolate Peanut Butter Banana Bars

Add cocoa powder or chocolate drizzle.

Gluten-Free Bars

Use certified gluten-free oats.

Make-Ahead, Storage & Freezing Tips

Make Ahead

Bake and store bars for easy grab-and-go snacks.

Storage

• Room temperature: 2 days
  
• Refrigerator: up to 5 days
  

Freezing

Freeze bars individually for up to 2 months.