Blueberry Lemon Oat Squares

Name: Blueberry Lemon Oat Squares
Prep time: 15 min
Cook time: 25 min
Total time: 40 min
Yield: 12 squares
Ingredients: 1 cup rolled oats; 1 cup almond flour; 1/2 cup honey or maple syrup; 1/4 cup coconut oil, melted; 1 ripe banana, mashed; 1 cup fresh blueberries; Zest of 1 lemon; Juice of 1 lemon; 1/2 teaspoon baking powder; 1/2 teaspoon salt

Highlighted under: Favorite Baking Ideas

I absolutely adore these Blueberry Lemon Oat Squares! They're a delightful blend of sweet and tart, making them perfect for breakfast or as an afternoon snack. The vibrant blueberries combined with zesty lemon create a refreshing flavor that never fails to brighten my day. Plus, the chewy oat base gives them a hearty texture that keeps me satisfied. Trust me, once you try these, they will become a staple in your kitchen for both family and friends to enjoy.

Created by

Genevieve Porter

Last updated on 2026-02-07T21:20:38.856Z

When I first made these Blueberry Lemon Oat Squares, I was amazed at how simple the process was. I mixed the ingredients in one bowl, which saved me a lot of cleanup time. The key is to use fresh blueberries; their natural sweetness pairs perfectly with the tartness of the lemon, creating an irresistible taste. I also love that these bars are healthy without sacrificing flavor.

One of my favorite tips is to let the squares cool completely before cutting them into pieces. This helps them firm up nicely and makes slicing a breeze. These squares are perfect for sharing, and I often wrap them individually for a quick snack on the go!

Why You'll Love This Recipe
Sweet and tangy flavor that bursts in your mouth
Healthy, wholesome ingredients that keep you energized
Easy to prepare and perfect for meal prep

Understanding the Ingredients

The blend of rolled oats and almond flour serves as the heart of these Blueberry Lemon Oat Squares. Rolled oats not only add a chewy texture but also provide a good source of fiber, helping to keep you full throughout the day. Almond flour, with its nutty undertones, enhances flavor while keeping the squares gluten-free. If you have nut allergies, feel free to substitute with oat flour or a seed flour, although this may slightly alter the final texture.

The use of ripe banana in the recipe is vital; it naturally sweetens the squares while adding moisture. Make sure to use a banana that's well-ripened—dotted brown is perfect—as this enhances the flavor. If bananas aren't your thing or if you need a substitution, you could replace it with unsweetened applesauce, though it may slightly change the taste and moisture content.

Baking Tips for Perfect Squares

When preparing to bake, lining the baking dish with parchment paper is essential for easy removal and clean cutting. Make sure the parchment extends over the edges so you can easily lift out the bars after they cool. This prevents them from sticking to the dish and ensures clean squares when cut. Don’t skip this step; it can be a hassle to cut them while they’re still stuck in the pan.

To achieve the perfect texture, monitor the baking time closely. You’re looking for a golden-brown finish with a slight firmness when you gently press down in the center. The squares will continue to firm up as they cool, so removing them from the oven too early can leave you with a gooey texture. If you find they are browning too quickly, consider placing a piece of aluminum foil loosely over the top during the last few minutes of baking.

Ingredients

Gather these fresh and simple ingredients to make your Blueberry Lemon Oat Squares:

Ingredients

1 cup rolled oats
1 cup almond flour
1/2 cup honey or maple syrup
1/4 cup coconut oil, melted
1 ripe banana, mashed
1 cup fresh blueberries
Zest of 1 lemon
Juice of 1 lemon
1/2 teaspoon baking powder
1/2 teaspoon salt

These ingredients blend together for a deliciously moist and flavorful result!

Instructions

Let's get started on making these delicious squares:

Preheat the Oven

Preheat your oven to 350°F (175°C) and line an 8x8-inch baking dish with parchment paper.

Mix Dry Ingredients

In a large mixing bowl, combine the rolled oats, almond flour, baking powder, and salt.

Combine Wet Ingredients

In another bowl, mix together the honey (or maple syrup), melted coconut oil, mashed banana, lemon zest, and lemon juice.

Combine Mixtures

Pour the wet mixture into the dry ingredients and mix until just combined. Gently fold in the fresh blueberries.

Bake the Bars

Spread the mixture evenly into the prepared baking dish and bake for 25 minutes or until golden brown.

Cool and Serve

Allow the squares to cool completely in the pan, then lift them out using the parchment paper and cut into squares.

Enjoy your delicious Blueberry Lemon Oat Squares!

Pro Tips

For an extra touch, try adding a sprinkle of chia seeds or nuts to the mixture for added texture and nutrition.

Storage and Make-Ahead Tips

These Blueberry Lemon Oat Squares can be stored in an airtight container at room temperature for about 3-4 days. However, if you want to maintain their freshness for a longer period, consider refrigerating them, which can extend their shelf life up to a week. Just make sure they are completely cooled before storing, as any residual warmth can lead to moisture buildup and spoilage.

For longer storage, these squares freeze beautifully! Cut them into individual portions and layer them between sheets of parchment paper in a freezer-safe container. They can be frozen for up to three months, allowing for an easy grab-and-go breakfast or snack option. To enjoy, simply thaw overnight in the fridge or microwave them for about 10-15 seconds for an instant snack.

Serving Suggestions and Variations

These oat squares are versatile and can be enjoyed in a number of ways. You can serve them plain or dress them up with a dollop of Greek yogurt for added creaminess and protein. A drizzle of honey over the top can also enhance the sweetness, and garnishing with extra lemon zest can add a nice visual touch.

Feel free to experiment with different fruits; raspberries, blackberries, or sliced strawberries could be fantastic substitutions, each bringing a unique flavor profile. For an added crunch, you might consider mixing in some chopped nuts or seeds like chia or flaxseeds, which can also enhance the nutritional value.

Questions About Recipes

→ Can I use frozen blueberries?

Yes, frozen blueberries can be used, but make sure to add them directly from the freezer to prevent them from becoming mushy.

→ How should I store these squares?

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

→ Can I substitute the almond flour?

You can use all-purpose flour or oat flour as a substitute, but the texture may slightly change.

→ What can I use instead of honey?

Maple syrup or agave syrup work well as substitutes for honey if you prefer a vegan option.