Wholesome blueberry oatmeal bars became my favorite baking project one rainy afternoon when I wanted something sweet but also hearty and nourishing and I had a big box of blueberries and a jar of oats sitting on my counter and I thought why not bring them together into a cozy, crumbly treat and when I pulled them out of the oven and smelled that warm blueberry aroma I knew they were going to become a regular snack in my kitchen and that first bite was so gooey and satisfying that I couldn’t resist going back for seconds.

Since then these wholesome blueberry oatmeal bars have been my go-to recipe whenever I want a quick breakfast option, a lunchbox treat, or a comforting afternoon snack and I love how they’re naturally sweetened and full of juicy berries and crumbly oats and they feel like a little hug in every bite and they always disappear fast whenever I share them with friends or family and they’ve become one of my favorite ways to enjoy blueberries all year long.
Ingredients
- Here’s what I use for these bars. You can adjust the sweeteners or add mix-ins as you like!
- Fresh or frozen blueberries – The juicy star that creates the sweet, jammy filling.
- Old-fashioned oats – Add a chewy, hearty texture to the crumb base and topping.
- Whole wheat or all-purpose flour – Helps hold the crust together while keeping it tender.
- Honey or maple syrup – Naturally sweetens the bars without refined sugar.
- Coconut oil or butter – Adds richness and helps bind the crust and crumb.
- Lemon juice – Brightens the blueberries and enhances the fruity flavor.
- Vanilla extract – Adds warmth and depth to the base and crumb.
- Cinnamon – Gives a cozy spice note throughout.
- Salt – Brings balance and enhances the sweetness.
Tools You’ll Need
- Mixing bowls – To prepare the oat base and blueberry filling.
- Whisk – For blending wet ingredients smoothly.
- Baking dish – To shape and bake the bars evenly.
- Parchment paper – Makes it easy to lift and slice the bars cleanly.
- Spatula – For pressing the oat mixture firmly into the pan.

Instructions
Step 1
I start by preheating the oven to 350°F and lining an 8×8-inch baking dish with parchment paper for easy removal.
Step 2
In a mixing bowl, I combine the oats, flour, cinnamon, and salt and give them a quick stir to mix.
Step 3
I add the melted coconut oil or butter, honey or maple syrup, and vanilla extract to the dry ingredients and stir until a crumbly dough forms.
Step 4
I set aside about 1/3 of this mixture for the crumb topping and press the remaining 2/3 firmly into the bottom of the prepared baking dish.
Step 5
In another bowl, I toss the blueberries with lemon juice and a little extra honey or maple syrup if they’re very tart.
Step 6
I spread the blueberry mixture evenly over the oat crust in the pan.
Step 7
I crumble the reserved oat mixture evenly over the top, leaving some larger chunks for extra texture.
Step 8
I bake for 30–35 minutes, until the top is golden and the blueberries are bubbling.
Step 9
I let the bars cool completely in the pan before lifting them out and slicing into squares.
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If you want extra crunch, I sometimes add chopped nuts or seeds to the oat crumb. You can also use other berries or a mix for a different flavor. When storing, I keep them in an airtight container in the fridge to maintain freshness and they also freeze beautifully.
Ways to Serve
I love enjoying these wholesome blueberry oatmeal bars as an on-the-go breakfast, a sweet but hearty snack, or even a light dessert with a dollop of yogurt or drizzle of almond butter. They’re also perfect for picnics or lunchboxes!
Frequently Asked Questions
Can I use frozen blueberries for Wholesome Blueberry Oatmeal Bars?
Yes! Just toss them with a bit of flour to prevent extra liquid from making the bars soggy.
Can I make Wholesome Blueberry Oatmeal Bars gluten-free?
Absolutely, just use a gluten-free flour blend and certified gluten-free oats.
Are Wholesome Blueberry Oatmeal Bars healthy?
Yes! They’re naturally sweetened, full of fiber, and made with whole ingredients for a nourishing treat.
See You in the Kitchen
I hope you give these Wholesome Blueberry Oatmeal Bars a try! They’re a cozy, easy-to-make treat that feels just as good as it tastes, and I’d love to hear how you enjoy them or what fun variations you try. Share your bakes with me!
Happy Cooking!
Print
Wholesome Blueberry Oatmeal Bars
- Total Time: 50 minutes
- Yield: 9 bars
- Diet: Vegetarian
Description
Looking for easy snack ideas? These quick wholesome blueberry oatmeal bars are simple, healthy, and the best cozy treat! Juicy blueberries and crumbly oat layers come together naturally sweetened for a delicious and nourishing snack or breakfast. Perfect for meal prep, lunchboxes, or a light dessert. A simple and comforting recipe you’ll love anytime!
Ingredients
- 2 cups fresh or frozen blueberries
- 2 cups old-fashioned oats
- 1 cup whole wheat or all-purpose flour
- 1/2 cup honey or maple syrup
- 1/2 cup coconut oil or melted butter
- 2 tablespoons lemon juice
- 1 teaspoon vanilla extract
- 1 teaspoon cinnamon
- 1/4 teaspoon salt
Instructions
- Preheat oven to 350°F and line 8×8-inch baking dish with parchment paper.
- Mix oats, flour, cinnamon, and salt in a bowl.
- Add coconut oil, honey, and vanilla; stir to form crumbly dough.
- Set aside 1/3 for topping; press remaining into dish base.
- Toss blueberries with lemon juice and extra honey if needed.
- Spread blueberry mixture over crust.
- Crumble reserved oat mixture on top.
- Bake 30–35 minutes until golden and bubbly.
- Cool completely before slicing and serving.
Notes
- Add nuts or seeds for extra crunch.
- Use mixed berries for variation.
- Toss frozen berries with flour to prevent sogginess.
- Store in fridge or freeze for later.
- Prep Time: 15 minutes
- Cook Time: 35 minutes
- Category: Snack
- Method: Baked
- Cuisine: American