Blueberry Banana Oatmeal Bars

Featured in: Homestyle Baking

These chewy bars combine juicy blueberries, ripe bananas, and wholesome oats with a touch of cinnamon and a protein boost for a nourishing start to your day. Simply mash bananas and mix them with honey, applesauce, eggs, and vanilla before combining with dry ingredients. Fold in fresh or frozen blueberries and bake until golden. Perfect for a quick breakfast or snack, these bars offer a balance of natural sweetness and hearty texture, making them ideal for on-the-go nourishment.

Updated on Mon, 22 Dec 2025 08:06:00 GMT
Golden-baked Blueberry Banana Oatmeal Protein Bars, studded with juicy blueberries, ready for a healthy breakfast. Save
Golden-baked Blueberry Banana Oatmeal Protein Bars, studded with juicy blueberries, ready for a healthy breakfast. | forkina.com

I started making these bars on Sunday nights after realizing I was spending too much money on store-bought breakfast options that left me hungry by ten. The smell of bananas and cinnamon baking together has this way of making the whole kitchen feel warm and ready for the week ahead. I love how the blueberries burst and stain the oats just slightly purple. These bars hold together beautifully in my bag and taste like something I actually want to eat, not just something I should eat. They've become my quiet Sunday ritual before the week gets loud.

The first time I brought these to share at work, someone asked if I bought them from a fancy bakery. I laughed because the batter had been sitting in my fridge overnight and I almost forgot to bake them. There's something about the way the banana sweetens everything naturally that makes people think you worked harder than you did. Now my coworkers ask me to make them whenever someone has a birthday breakfast, and I never tell them how easy it actually is.

Ingredients

  • Old-fashioned rolled oats: The backbone of these bars, they give you that hearty chew and soak up all the banana flavor without getting mushy.
  • Vanilla protein powder: This is what keeps you full until lunch and adds a subtle sweetness, just make sure it's a flavor you actually like because you'll taste it.
  • Ground cinnamon: A little warmth that makes everything smell like weekend mornings, even on a Tuesday.
  • Salt: Don't skip it, this is what stops the bars from tasting flat and one-dimensional.
  • Baking powder: Gives the bars just enough lift so they're not dense like a brick.
  • Ripe bananas: The riper the better, those brown-spotted ones are gold because they mash easily and bring natural sweetness.
  • Honey or pure maple syrup: A touch of liquid sweetness that helps everything bind together and adds a gentle caramel note.
  • Unsweetened applesauce: Keeps the bars moist without adding extra oil or butter, and you won't taste it at all.
  • Eggs: They hold everything together and give the bars structure so they slice cleanly.
  • Pure vanilla extract: A little goes a long way in making these taste homemade and cozy.
  • Melted coconut oil or unsalted butter: Just enough fat to keep the bars tender and give them a slight richness.
  • Fresh or frozen blueberries: Frozen ones work perfectly and you don't have to wait for them to thaw, they bake up just as juicy.

Instructions

Preheat and Prep:
Set your oven to 350°F and line your pan with parchment paper, letting the edges hang over like little handles. This makes pulling the bars out so much easier later, trust me.
Mix the Dry Ingredients:
Whisk the oats, protein powder, cinnamon, salt, and baking powder in a big bowl until everything looks evenly blended. This step takes thirty seconds and prevents clumps.
Combine the Wet Ingredients:
Mash those bananas until they're smooth and no big chunks remain, then whisk in the honey, applesauce, eggs, vanilla, and melted oil. It should look creamy and smell like banana bread.
Bring It Together:
Pour the wet mixture into the dry and stir gently until just combined, don't overwork it or the bars can turn tough. The batter will be thick and a little sticky.
Fold in the Blueberries:
Add the berries last and fold them in carefully so they stay whole and don't turn the whole batter purple. If you're using frozen, they might bleed a little and that's completely fine.
Spread and Bake:
Press the batter into your prepared pan, smoothing the top with a spatula so it bakes evenly. Bake for 28 to 32 minutes until the edges are golden and a toothpick comes out clean.
Cool and Cut:
Let the bars cool completely in the pan before you try to cut them, otherwise they'll crumble. Lift them out using the parchment and slice into twelve even pieces.
Freshly made Blueberry Banana Oatmeal Protein Bars with a soft, chewy texture, perfect for a quick snack. Pin it
Freshly made Blueberry Banana Oatmeal Protein Bars with a soft, chewy texture, perfect for a quick snack. | forkina.com

One morning my neighbor knocked on my door and asked if I was baking because the hallway smelled like a bakery. I handed her one of these bars still warm from the oven and she came back an hour later asking for the recipe. That's when I realized these weren't just convenient, they were actually something people got excited about. Now I make a double batch every other week and keep half in the freezer for mornings when I oversleep.

How to Store and Reheat

These bars keep beautifully at room temperature in an airtight container for up to three days, but I usually move them to the fridge after that because they last a full week and stay firmer. If you want to freeze them, wrap each bar individually in plastic wrap and toss them all in a freezer bag. You can grab one frozen and let it thaw on your commute, or microwave it for twenty seconds if you want it warm and soft.

Simple Swaps and Variations

If you don't have protein powder or just don't want to use it, swap it for oat flour and you'll still get a great bar, just with a little less protein. I've added chopped walnuts and a handful of dark chocolate chips when I'm feeling indulgent, and they turn into something that feels like dessert. You can also use raspberries or diced strawberries instead of blueberries, though the moisture level might change slightly so keep an eye on the bake time.

What to Serve Them With

I eat these bars plain most mornings, but they're also really good with a smear of almond butter or a dollop of Greek yogurt on the side. My kids like them with a drizzle of honey on top, which feels a little extra but makes them happy. They also pair perfectly with a hot cup of coffee or a smoothie if you want a more filling breakfast.

  • Serve them with fresh berries and a handful of granola for a complete breakfast plate.
  • Pack one in a lunchbox with cheese and apple slices for a balanced snack.
  • Crumble a bar over yogurt for an easy parfait that tastes like you tried harder than you did.
Enjoy a stack of homemade Blueberry Banana Oatmeal Protein Bars, highlighting the lovely blueberries and oats. Pin it
Enjoy a stack of homemade Blueberry Banana Oatmeal Protein Bars, highlighting the lovely blueberries and oats. | forkina.com

These bars have this quiet way of making mornings feel less rushed and more intentional, even when everything else is chaotic. I hope they become part of your routine the way they've become part of mine.

Frequently Asked Questions

Can I use frozen blueberries?

Yes, frozen blueberries work well and can be added without thawing to preserve texture and color.

What can replace protein powder?

Oat flour can be used as an alternative for a non-protein variation without altering texture significantly.

How long do these bars stay fresh?

Store at room temperature in an airtight container for up to 3 days or refrigerate for up to a week.

Are these bars suitable for vegetarians?

Yes, this version includes eggs but no meat products, aligning with vegetarian preferences.

Can I add nuts or seeds for extra texture?

Absolutely, adding chopped nuts or seeds enhances crunch and adds nutritional value.

Blueberry Banana Oatmeal Bars

Chewy bars packed with blueberries, bananas, oats, and a protein boost for a nutritious start.

Prep Time
15 Minutes
Cook Time
30 Minutes
Total Time
45 Minutes

Category: Homestyle Baking

Difficulty: Easy

Cuisine: American

Yield: 12 servings

Dietary: Vegetarian

Ingredients

Dry Ingredients

01 2 cups old-fashioned rolled oats
02 1/2 cup vanilla protein powder
03 1/2 teaspoon ground cinnamon
04 1/4 teaspoon salt
05 1 teaspoon baking powder

Wet Ingredients

01 2 large ripe bananas, mashed
02 1/4 cup honey or pure maple syrup
03 1/4 cup unsweetened applesauce
04 2 large eggs
05 1 teaspoon pure vanilla extract
06 2 tablespoons melted coconut oil or unsalted butter

Mix-Ins

01 1 cup fresh or frozen blueberries (if frozen, do not thaw)

Instructions

Step 01

Preheat oven and prepare pan: Preheat oven to 350°F. Line an 8x8-inch baking pan with parchment paper, leaving overhang for easy removal.

Step 02

Combine dry ingredients: Whisk rolled oats, protein powder, cinnamon, salt, and baking powder in a large bowl.

Step 03

Mix wet ingredients: In a separate bowl, mash bananas. Add honey or maple syrup, applesauce, eggs, vanilla extract, and melted coconut oil; whisk until smooth.

Step 04

Combine wet and dry mixtures: Pour wet mixture into dry ingredients and stir gently until just combined.

Step 05

Fold in blueberries: Carefully fold in blueberries, avoiding overmixing to maintain texture.

Step 06

Transfer to pan and bake: Spread batter evenly in prepared pan. Bake for 28 to 32 minutes until golden and a toothpick inserted in the center comes out clean.

Step 07

Cool and cut: Allow bars to cool completely in the pan. Lift out using parchment overhang and cut into 12 equal bars.

Tools You'll Need

  • Mixing bowls
  • Whisk
  • Spatula
  • 8x8-inch baking pan
  • Parchment paper
  • Measuring cups and spoons

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Contains eggs, tree nuts/coconut (if coconut oil is used), and dairy (if butter or dairy-based protein powder is used). Some protein powders may contain soy or nut traces.

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 135
  • Total Fat: 3.5 g
  • Total Carbohydrate: 22 g
  • Protein: 6 g