Simple Blueberry Oat Bars

Featured in Sweet bites of pure joy.

These bars have a brown sugar and oat crust, fresh or frozen blueberry filling, and a crumb topping. Mix, press, layer, and bake for an easy dessert ready in under an hour. Adjust for gluten-free with alternative flours and oats.
alicia in the kitchen
Updated on Mon, 21 Apr 2025 12:19:40 GMT
Sweet Blueberry Bars Pin it
Sweet Blueberry Bars | tasteofsavor.com

A tasty mix of plump blueberries and filling oats make up these filling breakfast squares. The soft base holds juicy berries while the crunchy top layer gives a nice textural difference.

Key Ingredients

  • Regular oats: Gives that nice bite and holds everything together
  • Plain flour: Makes the soft base layer
  • Dark sugar: Brings wetness and toffee-like taste
  • Butter: Go for fancy stuff for tastier results
  • Ripe blueberries: Small wild ones pack more flavor
  • Cornstarch: Helps berry juice get thick
  • Vanilla: Real stuff makes everything better
  • Cinnamon: Brings cozy flavor notes

Directions

Getting Ready
Put rack in middle. Heat oven to 375°F. Put paper in pan with extra hanging over sides.
Dry Mix
Put oats, flour, dark sugar, baking soda, salt in big bowl. Mix well.
Adding Wet Stuff
Add melted butter and vanilla to dry stuff. Stir till it looks crumbly.
First Layer
Push half the mix down hard into your pan, making it flat all over.
Fruit Layer
Toss berries with sugar and cornstarch. Spread them over the bottom layer.
Adding the Top
Scatter leftover oat mix on berries. Press down lightly.
Cooking Time
Cook for 35-40 mins until it's golden and you see bubbling berries.
Cooling Off
Let it cool all the way in the pan. Pull it out with the paper. Cut carefully.
Easy blueberry-oat-bars Pin it
Easy blueberry-oat-bars | tasteofsavor.com

Helpful Hints

Use non-stick paper in your pan, try cutting with string instead of a knife, stick a toothpick in to check if it's done, and turn the pan around halfway through baking,

Keeping It Fresh

Counter storage: 3 days, fridge: keeps a week, freezer: good for 3 months, warming up: leave in fridge overnight,

Health Perks

Oats help your tummy work right, blueberries fight bad stuff in your body, whole grains keep you going, and fruit gives natural sweetness,

Changing With The Seasons

Summer: Try different berries with lemon peel, Fall: Use chopped apples with more cinnamon, Winter: Toss in dried cranberries, Spring: Add fresh cut strawberries,

Goes Great With

Breakfast: Try with some Greek yogurt, Snack: Drink with almond milk, Dessert: Add some vanilla ice cream, Brunch: Enjoy alongside a fruit smoothie,

Our Story

These squares became what we always bring camping. They don't fall apart and travel well on hikes.

More Good Stuff

Can make them ahead of time, adjust sweetness how you like, easy to take anywhere, and cheaper than buying snacks,

Delicious blueberry-oat-bars Pin it
Delicious blueberry-oat-bars | tasteofsavor.com

This shows you can have something that's good for you and tasty too - just what busy families need when looking for quick but healthy options.

Frequently Asked Questions

→ Can I use frozen blueberries?
Absolutely, frozen berries work perfectly. You don't have to defrost them.
→ How should I store these bars?
Pop them in a sealed container at room temp for a few days or the fridge for about a week.
→ Can I make these gluten-free?
For sure! Swap in gluten-free oats and a suitable 1:1 flour blend.
→ Can I use other fruits?
Yep! Try strawberries, blackberries, or raspberries instead.
→ Can I freeze these bars?
You bet. Wrap them tightly and freeze for up to 3 months. Let them defrost slowly in the fridge.

Blueberry Oatmeal Bars

Sweet blueberry-filled bars with a crumbly oat crust. Perfect for treats or snacks.

Prep Time
15 Minutes
Cook Time
40 Minutes
Total Time
55 Minutes
By: Alicia

Category: Desserts

Difficulty: Intermediate

Cuisine: American

Yield: 16 Servings (16 bars)

Dietary: Vegetarian

Ingredients

→ Dry Base

01 3/4 cup all-purpose flour
02 1/4 teaspoon baking soda
03 1/3 cup light brown sugar
04 1 cup old-fashioned oats
05 1/2 teaspoon cinnamon
06 1/4 teaspoon salt

→ Wet Ingredients

07 6 tablespoons melted unsalted butter
08 1 teaspoon vanilla extract

→ Filling

09 2 teaspoons cornstarch
10 1 cup blueberries
11 1/4 cup granulated sugar

Instructions

Step 01

Start heating your oven to 375°F (190°C). Line an 8-inch square pan with parchment, making sure there's enough extra for easy lifting when it's done.

Step 02

Stir together the oats, brown sugar, flour, salt, baking soda, and cinnamon in a bowl. Add the melted butter and vanilla, mixing gently until it's crumbly.

Step 03

With your crumb mixture, press half of it firmly and evenly into the pan you've prepared.

Step 04

Mix the blueberries with cornstarch and granulated sugar until they're nicely coated. Spread them evenly across the pressed base.

Step 05

Scatter the rest of the crumbly mixture over the blueberries and push it down lightly to keep it in place.

Step 06

Bake it for 35-40 minutes, or until the top is golden and the blueberry layer is bubbly. Let it cool all the way before lifting it out using the parchment paper. Then cut it into squares.

Notes

  1. Mix lemon zest with blueberries for a bright, citrus flavor
  2. Throw in some almond meal to make the base extra nutty
  3. Store these bars in an airtight container and they'll stay good for up to 5 days

Tools You'll Need

  • 8-inch square pan
  • Parchment liner
  • Bowls for mixing
  • Measuring tools

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Wheat
  • Dairy

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 180
  • Total Fat: 8 g
  • Total Carbohydrate: 25 g
  • Protein: 2 g