Chunky Monkey Protein Baked Oat Bars

Featured in: Weekend Home-Bake Treats

These Chunky Monkey baked oat bars combine the classic flavors of banana, peanut butter, dark chocolate, and walnuts into a convenient, portable form. Ripe bananas provide natural sweetness and moisture, while protein powder and oats create a filling base that keeps you satisfied. The baking process develops a golden, slightly crisp edge with a soft, chewy center—perfect for meal prep or busy mornings.

Mixing the wet and dry ingredients separately ensures even distribution of flavors, and the quick baking time means you can have fresh bars ready in under 40 minutes. Customizable for various dietary needs, these bars store well and make an excellent grab-and-go option for breakfast, post-workout fuel, or afternoon snacks.

Updated on Sun, 08 Feb 2026 02:02:25 GMT
Freshly baked Chunky Monkey Protein Baked Oat Bars with melted chocolate chips and chopped walnuts on a cooling rack. Save
Freshly baked Chunky Monkey Protein Baked Oat Bars with melted chocolate chips and chopped walnuts on a cooling rack. | wheatsprig.com

Bring the classic flavors of a chunky monkey smoothie into your morning routine with these wholesome Chunky Monkey Protein Baked Oat Bars. Combining ripe bananas, creamy peanut butter, and dark chocolate, they are the perfect balance of nutrition and indulgence for breakfast or on-the-go snacking.

Freshly baked Chunky Monkey Protein Baked Oat Bars with melted chocolate chips and chopped walnuts on a cooling rack. Save
Freshly baked Chunky Monkey Protein Baked Oat Bars with melted chocolate chips and chopped walnuts on a cooling rack. | wheatsprig.com

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These bars offer a moist, cake-like texture that makes them feel like a treat while fueling your body with complex carbohydrates and protein. Whether you are rushing out the door or need a quick post-workout bite, these bars have you covered.

Ingredients

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  • Wet Ingredients:
  • 2 large ripe bananas, mashed
  • 1/3 cup (80 ml) unsweetened applesauce
  • 1/4 cup (60 ml) honey or maple syrup
  • 1/4 cup (60 ml) unsweetened almond milk
  • 1/4 cup (60 g) natural peanut butter
  • 1 tsp vanilla extract
  • Dry Ingredients:
  • 2 cups (200 g) old-fashioned rolled oats
  • 1/2 cup (60 g) vanilla or chocolate protein powder
  • 1/4 cup (30 g) chopped walnuts
  • 1/4 cup (40 g) dark chocolate chips
  • 1/4 tsp salt
  • 1/2 tsp ground cinnamon
  • 1 tsp baking powder

Instructions

Step 1
Preheat your oven to 350°F (175°C). Line an 8x8-inch (20x20 cm) baking pan with parchment paper.
Step 2
In a large bowl, mash the bananas until smooth. Stir in applesauce, honey or maple syrup, almond milk, peanut butter, and vanilla extract until well combined.
Step 3
In a separate bowl, combine oats, protein powder, walnuts, chocolate chips, salt, cinnamon, and baking powder.
Step 4
Add the dry ingredients to the wet ingredients. Mix until just combined; do not overmix.
Step 5
Spread the mixture evenly in the prepared baking pan.
Step 6
Bake for 22–25 minutes, or until the bars are set and golden around the edges.
Step 7
Allow to cool completely in the pan before slicing into 12 bars.

Zusatztipps für die Zubereitung

To ensure the best flavor, use very ripe bananas with plenty of brown spots. It is crucial to allow the bars to cool completely in the pan before slicing; this prevents them from crumbling and ensures clean edges. Store your finished bars in an airtight container at room temperature for up to 3 days or in the refrigerator for up to 1 week.

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Varianten und Anpassungen

Customize these bars by swapping walnuts for pecans or omitting them entirely for a nut-free version. For a vegan-friendly batch, use maple syrup, a plant-based protein powder, and dairy-free chocolate chips. You can also boost the nutritional profile by stirring in a tablespoon of chia or flax seeds for extra fiber.

Serviervorschläge

Enjoy these bars as a convenient grab-and-go breakfast or a midday snack. For a more indulgent morning meal, serve them slightly warmed with an extra drizzle of natural peanut butter or a side of creamy Greek yogurt. They also pair perfectly with a fresh cup of coffee or a tall glass of cold almond milk.

A close-up of Chunky Monkey Protein Baked Oat Bars showing a moist texture, layered with banana and peanut butter. Save
A close-up of Chunky Monkey Protein Baked Oat Bars showing a moist texture, layered with banana and peanut butter. | wheatsprig.com

Each bar contains approximately 160 calories, 6g of fat, 21g of carbohydrates, and 6g of protein, making them a balanced choice for your daily routine. Enjoy the classic combination of banana, chocolate, and walnut in every nutritious bite.

Recipe Q&A

Can I make these bars vegan?

Yes. Substitute honey with maple syrup, use a plant-based vanilla or chocolate protein powder, and opt for dairy-free dark chocolate chips. The applesauce already provides a great egg-free binding agent.

What type of protein powder works best?

Vanilla or chocolate whey and casein proteins work well, as do most plant-based options. Avoid unflavored varieties if you prefer a sweeter result. Chocolate protein powder enhances the rich cocoa flavor profile.

How should I store these oat bars?

Keep in an airtight container at room temperature for up to 3 days, or refrigerate for up to 1 week. For longer storage, wrap individually and freeze for up to 3 months. Thaw at room temperature before enjoying.

Can I substitute the peanut butter?

Almond butter or sunflower seed butter work as direct substitutes. Cashew butter provides a milder flavor profile. If avoiding nuts entirely, use sunflower seed butter and omit the walnuts.

Why did my bars turn out dry?

This typically happens from overbaking or using too much protein powder, which absorbs moisture. Check at 22 minutes and remove when edges are golden but the center still feels slightly soft. They'll continue setting as they cool.

Can I add mix-ins beyond what's listed?

Chia seeds, flax seeds, dried fruit like cherries or raisins, shredded coconut, or chopped pecans all complement the banana-chocolate base. Keep total add-ins to about 1 cup to maintain proper texture.

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Chunky Monkey Protein Baked Oat Bars

Wholesome banana-chocolate oat bars with protein, perfect for breakfast or snacking on the go.

Prep Time
10 min
Time to Cook
25 min
Overall Time
35 min
Recipe By Riley Scott


Skill Level Easy

Cuisine American

Makes 12 Number of Servings

Diet Details Meat-Free

What You’ll Need

Wet Ingredients

01 2 large ripe bananas, mashed
02 1/3 cup unsweetened applesauce
03 1/4 cup honey or maple syrup
04 1/4 cup unsweetened almond milk
05 1/4 cup natural peanut butter
06 1 teaspoon vanilla extract

Dry Ingredients

01 2 cups old-fashioned rolled oats
02 1/2 cup vanilla or chocolate protein powder
03 1/4 cup chopped walnuts
04 1/4 cup dark chocolate chips
05 1/4 teaspoon salt
06 1/2 teaspoon ground cinnamon
07 1 teaspoon baking powder

Method

Step 01

Prepare baking pan: Preheat oven to 350°F. Line an 8x8-inch baking pan with parchment paper.

Step 02

Combine wet ingredients: In a large bowl, mash bananas until smooth. Stir in applesauce, honey or maple syrup, almond milk, peanut butter, and vanilla extract until well combined.

Step 03

Mix dry ingredients: In a separate bowl, combine oats, protein powder, walnuts, chocolate chips, salt, cinnamon, and baking powder.

Step 04

Combine mixtures: Add dry ingredients to wet ingredients. Mix until just combined; do not overmix.

Step 05

Transfer to pan: Spread the mixture evenly in the prepared baking pan.

Step 06

Bake bars: Bake for 22-25 minutes, or until the bars are set and golden around the edges.

Step 07

Cool completely: Allow to cool completely in the pan before slicing into 12 bars.

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What You’ll Need

  • Mixing bowls
  • 8x8-inch baking pan
  • Parchment paper
  • Spatula
  • Knife

Allergy Info

Review every ingredient for allergens and speak with a healthcare provider if you’re unsure.
  • Contains peanuts and tree nuts (walnuts)
  • May contain milk and soy from chocolate chips and protein powder
  • Check all ingredient labels for gluten, dairy, and soy allergens

Nutritional info (per portion)

This data is just a guideline and shouldn’t replace medical input.
  • Energy (kcal): 160
  • Fat Content: 6 g
  • Carbohydrates: 21 g
  • Proteins: 6 g

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