Name: No Bake Blueberry Oat Bars
Prep time: 20 min
Total time: 2 h 20 min
Cuisine: American
Ingredients: 2 cups rolled oats; 1/2 cup nut butter (almond or peanut butter); 1/4 cup melted coconut oil; 1/4 cup maple syrup or honey; 1/2 tsp vanilla extract; Pinch of salt; 1 1/2 cups fresh or frozen blueberries; 1 tbsp chia seeds; 1–2 tbsp maple syrup (for jam, adjust to taste); 1 tsp lemon juice (optional, for brightness)

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No Bake Blueberry Oat Bars are an easy, wholesome treat that combines chewy oats with a sweet, jammy blueberry layer—all without turning on the oven. They’re perfect when I want a quick snack or breakfast bar that’s full of flavor, naturally sweetened, and just the right amount of indulgent. I love how they come together with simple ingredients and chill to perfection in the fridge.

Why You’ll Love This Recipe

I love this recipe because it’s quick, flexible, and doesn’t require baking. The base and topping are made from a mixture of oats, nut butter, and maple syrup, while the center is filled with a delicious blueberry jam made right on the stovetop. These bars are great for meal prep, kid-friendly, and totally customizable. Plus, they’re gluten-free, dairy-free, and naturally sweetened—so I feel good about enjoying them any time of day. No Bake Blueberry Oat Bars

Ingredients

(Here’s a tip: Check out the full list of ingredients and measurements in the recipe card below.)

Rolled oats
Nut butter (such as almond or peanut butter)
Maple syrup or honey
Coconut oil
Fresh or frozen blueberries
Chia seeds (for thickening the jam)
Vanilla extract
Salt
Lemon juice (optional, for brightness)

Directions

I start by making the blueberry jam. In a small saucepan, I cook the blueberries over medium heat until they begin to burst.
I mash them gently, stir in chia seeds, maple syrup, and a splash of lemon juice, and simmer until thickened. I let it cool slightly.
In a large bowl, I mix oats, nut butter, melted coconut oil, maple syrup, vanilla, and a pinch of salt until everything sticks together.
I press half of the oat mixture into a lined square pan to form the base.
I spread the cooled blueberry chia jam evenly over the base.
I crumble the remaining oat mixture on top and press it down gently.
I refrigerate the bars for at least 2–3 hours until firm, then slice and serve.

Servings and timing

This recipe makes about 9–12 bars and takes around 20 minutes to prepare, plus chilling time. They’re ready to enjoy in about 2–3 hours, but I often let them sit overnight for best results.

Variations

I swap blueberries for raspberries, strawberries, or a mix of berries depending on the season.
For a nut-free version, I use sunflower seed butter or tahini.
I add shredded coconut or chopped nuts to the oat base for extra texture.
I mix in a few mini chocolate chips to the top layer for a sweet twist.
For more protein, I add a scoop of protein powder to the oat mixture.

storage/reheating

I store these bars in an airtight container in the fridge for up to 1 week. They also freeze well—just wrap them individually and thaw as needed. I don’t recommend reheating them since they’re meant to be enjoyed chilled or at room temperature. No Bake Blueberry Oat Bars

FAQs

Can I use quick oats instead of rolled oats?

Yes, but the texture will be softer and less chewy. I prefer rolled oats for a more structured bar.

Do I have to use chia seeds?

Chia seeds help thicken the jam, but I’ve also used cornstarch or just reduced the jam longer for a thicker texture.

Can I make these bars vegan?

They already are if I use maple syrup and dairy-free ingredients like coconut oil and plant-based nut butter.

How do I keep the bars from falling apart?

I press each layer down firmly and make sure they’re fully chilled before slicing. The coconut oil also helps them firm up nicely.

Can I double the recipe?

Yes, I double the ingredients and use a 9×13 pan for a larger batch. They’re great for feeding a crowd or stocking the freezer.

Conclusion

No Bake Blueberry Oat Bars are one of my favorite make-ahead snacks—sweet, fruity, and full of texture. I love that they’re easy to prep, naturally sweetened, and totally customizable depending on what I have in the kitchen. Whether I’m packing them for on-the-go or keeping them in the fridge for a quick bite, they always hit the spot.