Banana Baked Oatmeal Bars

Featured in: Homemade Bakes

These wholesome banana oatmeal bars come together in just 25 minutes with simple pantry ingredients. The mashed banana creates natural sweetness and a soft, chewy texture while keeping them dairy-free and easily gluten-free. Simply mix rolled oats with ripe banana, pure maple syrup, vanilla, and your choice of oil or nut butter. Press into a pan and bake until golden. Let them set in the cooling oven for perfect texture. Customize with chocolate chips, nuts, or dried fruit. They store beautifully in the refrigerator for up to 4 days or freeze for 3 months, making them ideal for busy mornings or afternoon snacks.

Updated on Sat, 07 Feb 2026 13:58:00 GMT
Golden brown baked oatmeal bars studded with chocolate chips sit on a cooling rack next to fresh banana slices. Save
Golden brown baked oatmeal bars studded with chocolate chips sit on a cooling rack next to fresh banana slices. | crumbnest.com

My youngest burst into the kitchen last Tuesday announcing she had discovered the perfect use for those speckled bananas nobody wanted to touch anymore. I had been about to toss them into the compost, but her enthusiasm stopped my hand midair, and instead we mashed them into something that turned our morning routine completely around.

Last month I brought a batch to a neighborhood brunch, and my friend Sarah, who claims she hates healthy baked goods, accidentally ate three while we were all distracted catching up. She called me two days later begging for the recipe, saying her kids had requested them every morning since.

Ingredients

  • 2 cups rolled oats: Old fashioned oats give the best chewy texture, but quick oats work in a pinch. Just avoid steel cut oats here as they stay too firm.
  • 1/2 tsp salt: This tiny amount wakes up all the flavors and keeps the bars from tasting flat or overly sweet.
  • 1 1/3 cups mashed ripe banana: About 3 medium bananas with plenty of brown spots. The specklier the banana, the sweeter and more flavorful your bars will be.
  • 6 tbsp water: Helps create the right moisture level without making the batter too wet.
  • 3 tbsp pure maple syrup, agave, or honey: Just enough sweetness to highlight the bananas without overwhelming them.
  • 3 tbsp oil, nut butter, or additional water: Coconut oil adds subtle richness, while nut butter boosts protein. Extra water works perfectly for a lower fat version.
  • 1 tsp pure vanilla extract: Do not skip this. It ties everything together and makes these taste like a special treat.
  • Optional mix ins: Chocolate chips make these feel like dessert, while nuts add protein and crunch. Dried fruit works beautifully too.

Instructions

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Preheat and prepare:
Heat your oven to 350°F and line an 8 inch square pan with parchment paper, letting the paper hang over two sides for easy lifting later.
Mix the dry base:
Combine oats and salt in a large bowl, giving them a quick stir to distribute the salt evenly.
Add the wet ingredients:
Pour in mashed banana, water, sweetener, oil or nut butter, and vanilla. Stir until everything is evenly moistened and no dry oats remain visible.
Fold in your extras:
Gently incorporate chocolate chips, nuts, or dried fruit if using, being careful not to overmix.
Spread and bake:
Transfer batter to your prepared pan and smooth the top with a spatula. Bake for exactly 20 minutes.
The crucial rest:
Turn off the oven but leave the door closed. Let the bars sit inside for 5 more minutes to finish setting without drying out.
Cool completely:
Remove from oven and let cool completely before slicing into 6 to 9 bars. This patience pays off in cleaner cuts and better texture.
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Thick, chewy Baked Oatmeal Bars with melted chocolate chips and a drizzle of maple syrup on a white plate. Save
Thick, chewy Baked Oatmeal Bars with melted chocolate chips and a drizzle of maple syrup on a white plate. | crumbnest.com

These have become my go to for Sunday meal prep. I wrap individual bars and freeze them, then grab one each morning during the week. My daughter now calls them her breakfast candy, which I consider a parenting win.

Storage and Freezing

Store leftover bars in an airtight container in the refrigerator for up to 4 days. For longer storage, wrap individually in plastic wrap and freeze for up to 3 months. Thaw overnight in the refrigerator or grab frozen and warm briefly in the microwave.

Flavor Variations

Swap the banana for unsweetened applesauce for a lighter, fruitier bar. Pumpkin puree works beautifully in fall and adds extra nutrients. Try adding cinnamon, nutmeg, or a pinch of cardamom for warm spice notes. For a chocolate version, add 2 tablespoons cocoa powder and increase sweetener slightly.

Serving Suggestions

These bars shine on their own but become extraordinary with simple toppings. Try them warm with a smear of almond butter or Greek yogurt. Crumble a bar over oatmeal or yogurt parfaits for added texture and sweetness. For dessert, serve with a drizzle of melted dark chocolate or a scoop of vanilla ice cream.

  • Pair with morning coffee or tea for a satisfying breakfast
  • Tuck into lunchboxes for a wholesome afternoon snack
  • Pack for hiking or road trips as travel friendly fuel
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A square Baked Oatmeal Bar shows a soft, moist interior packed with oats and ripe banana for a healthy breakfast. Save
A square Baked Oatmeal Bar shows a soft, moist interior packed with oats and ripe banana for a healthy breakfast. | crumbnest.com

Theres something deeply satisfying about turning those overlooked spotted bananas into something my family actually requests. These bars have transformed our morning chaos into something a little more peaceful and a lot more delicious.

Recipe FAQ

Can I make these oatmeal bars ahead of time?

Absolutely. These bars are perfect for meal prep. Store in an airtight container in the refrigerator for up to 4 days, or freeze individually wrapped bars for up to 3 months. Thaw overnight in the refrigerator or microwave for 20-30 seconds.

What can I use instead of banana?

Unsweetened applesauce or pumpkin purée work well as substitutes. Keep in mind the flavor and sweetness will vary slightly. You may need to adjust the sweetener depending on the fruit's natural sweetness.

How do I know when the bars are done baking?

The bars are ready when the edges are lightly golden and the center feels set but still slightly soft. They will continue cooking as they rest in the closed oven, which helps achieve the perfect chewy texture.

Can I add protein powder to these bars?

Yes. Add one scoop of your favorite protein powder and reduce the oats by about 2-3 tablespoons to maintain the right consistency. Vanilla or unflavored powder works best without overpowering the banana flavor.

Are these bars suitable for special diets?

These bars are naturally vegetarian and can be dairy-free, gluten-free, and vegan. Use certified gluten-free oats for GF needs. Choose maple syrup or agave instead of honey for vegan. Oil or extra water keeps them dairy-free.

Why let the bars cool in the oven?

Letting them rest in the closed oven allows the bars to set completely without over-baking. This gentle cooling time helps achieve the ideal texture—firm enough to hold their shape but still soft and chewy.

Banana Baked Oatmeal Bars

Soft, chewy banana oatmeal bars ready in 25 minutes. Perfect for meal prep and freezer-friendly.

Prep duration
5 min
Cook duration
20 min
Complete duration
25 min
Created by Chloe Martin


Skill Level Easy

Heritage American

Output 9 Portions

Dietary considerations Meat-Free, No Dairy

Components

Dry Ingredients

01 2 cups rolled oats
02 1/2 tsp salt

Wet Ingredients

01 1 1/3 cups mashed ripe banana (about 3 medium bananas)
02 6 tbsp water
03 3 tbsp pure maple syrup, agave, or honey, or stevia equivalent
04 3 tbsp oil (such as coconut, vegetable), nut butter, or additional water
05 1 tsp pure vanilla extract

Optional Mix-Ins

01 1/3 cup chocolate chips, chopped nuts, dried fruit, or seeds

Directions

Phase 01

Preheat and Prepare Pan: Preheat your oven to 350°F (175°C). Line an 8-inch (20 cm) square baking pan with parchment paper or grease well.

Phase 02

Combine Dry Ingredients: In a large mixing bowl, combine the rolled oats and salt.

Phase 03

Mix Wet Ingredients: Add the mashed banana, water, maple syrup (or other sweetener), oil (or nut butter or extra water), and vanilla extract to the bowl. Stir until evenly combined.

Phase 04

Add Optional Mix-Ins: Fold in any optional mix-ins such as chocolate chips or nuts.

Phase 05

Transfer to Pan: Pour the mixture into the prepared baking pan and use a spatula to smooth the top. Sprinkle additional chocolate chips or nuts on top if desired.

Phase 06

Bake: Bake for 20 minutes. Turn off the oven (do not open the door) and let the bars sit inside the closed oven for an additional 5 minutes to set.

Phase 07

Cool and Slice: Remove from the oven, allow to cool completely, then slice into 6–9 bars.

Tools needed

  • 8-inch square baking pan
  • Mixing bowl
  • Spatula or spoon
  • Measuring cups and spoons
  • Parchment paper (optional)

Allergy details

Review each component for potential allergens and seek medical guidance if you're uncertain about ingredients.
  • Contains oats (check for gluten-free certification if needed).
  • May contain nuts if nut butter or nuts are used.
  • Honey is not vegan; use maple syrup or agave for vegan option.

Nutritional information (each portion)

These values are approximate guides only and shouldn't replace professional medical consultation.
  • Energy: 125
  • Fats: 3.5 g
  • Carbohydrates: 23 g
  • Proteins: 2.5 g