Soft Banana Oat Cookies with a Cozy Cinnamon Swirl

Molly Kitchen Daily
Molly Kitchen Daily
15 min Prep Time
30 min Time
12 Servings
Easy Difficulty
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These soft banana oat cookies are naturally sweetened and packed with wholesome sprouted grains. The warm cinnamon swirl adds a cozy touch that’s perfect for a quick snack or a light breakfast on busy mornings.

Introduction

I stumbled upon this recipe during a week when I needed something sweet but wholesome—something that wouldn’t leave me feeling guilty. The first time I made these banana oat cookies, I was surprised at how soft and naturally sweet they turned out without any refined sugar. What makes this version special is the use of sprouted oat flour, which adds a subtle earthiness and a nourishing boost that you don’t get from plain oats. Plus, I swirl in cinnamon right before baking, which creates those comforting pockets of warm spice that make these cookies feel like a hug in every bite. I’ve tried other banana cookie recipes before, but they often came out dry or too dense. The trick I learned here is balancing the moisture from ripe bananas with just enough coconut oil and maple syrup to keep them soft and tender. When they come out of the oven, they’re golden and slightly chewy with that inviting cinnamon aroma filling the kitchen. They’re perfect for an afternoon pick-me-up or a quick breakfast on busy mornings. Honestly, my whole family loves these, and I always make a batch to have on hand when I need a wholesome snack.

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What You'll Need

Approximately 12 cookies

  • 2 ripe bananas, mashed
  • 1 1/2 cups sprouted oat flour
  • 1 cup rolled oats
  • 1/4 cup maple syrup
  • 1/4 cup coconut oil, melted
  • 1 tsp vanilla extract
  • 1 tsp baking powder
  • 1/2 tsp ground cinnamon
  • 1/4 tsp salt
  • 1 tbsp ground flaxseed mixed with 3 tbsp water (flax egg)
  • 2 tsp cinnamon for swirling

How To Do It

Step 1
Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper. This step is crucial because a properly heated oven ensures even baking and a nice golden color. Using parchment prevents sticking and makes cleanup a breeze. Don’t skip this or the cookies might spread unevenly or stick to the pan.
⏱ Time: 10 minutes
✓ Doneness: Oven preheated and baking sheet lined, ready for cookie dough
Step 2
In a small bowl, combine the ground flaxseed with water to create a flax egg. Let it sit for 5 minutes until it thickens. This flax egg acts as a binder, replacing traditional eggs and adding a subtle nutty flavor. If you rush this, the flax won’t gel properly and your cookies may crumble.
⏱ Time: 5 minutes
✓ Doneness: Flaxseed mixture looks gel-like and slightly sticky
Step 3
In a large mixing bowl, mash the ripe bananas thoroughly until smooth. Ripe bananas are essential here—they provide natural sweetness and moisture. Lumps will affect texture so take your time. This is the base that keeps the cookies soft and tender.
⏱ Time: 5 minutes
✓ Doneness: Bananas are smooth with no large chunks
Step 4
Add the melted coconut oil, maple syrup, vanilla extract, and the prepared flax egg to the mashed bananas. Mix until everything is well combined. Coconut oil adds richness and helps keep the cookies moist, while maple syrup balances sweetness naturally. Mixing well ensures even flavor distribution.
⏱ Time: 3 minutes
✓ Doneness: Wet ingredients are fully incorporated with no separation
Step 5
In a separate bowl, whisk together the sprouted oat flour, rolled oats, baking powder, salt, and 1 teaspoon of cinnamon. Combining dry ingredients separately helps to evenly distribute the leavening and spices, which prevents clumps and ensures consistent flavor throughout the cookies.
⏱ Time: 3 minutes
✓ Doneness: Dry ingredients are evenly mixed and free of lumps
Step 6
Gradually fold the dry ingredients into the wet banana mixture. Stir gently until just combined; avoid overmixing to keep the cookies tender and prevent them from becoming tough. The batter will be thick but slightly sticky—this is the right consistency.
⏱ Time: 4 minutes
✓ Doneness: Batter is uniform with no streaks of flour
Step 7
Scoop the cookie dough onto the prepared baking sheet, spacing them about 2 inches apart. Use a spoon or cookie scoop for even sizing. This helps the cookies bake evenly and prevents them from merging into one another. Flatten each cookie slightly with the back of the spoon for even baking.
⏱ Time: 5 minutes
✓ Doneness: Cookies are evenly spaced and slightly flattened on the tray
Step 8
Sprinkle the 2 teaspoons of cinnamon over the tops of the cookie dough, then use a toothpick or skewer to gently swirl the cinnamon through the dough. This creates those lovely cinnamon pockets that give each bite a warm, comforting flavor. Be gentle so you don’t overmix and lose the swirl effect.
⏱ Time: 3 minutes
✓ Doneness: Visible cinnamon swirls on cookie surfaces
Step 9
Bake the cookies for 25-30 minutes until they’re golden around the edges but still soft in the center. Overbaking will dry them out, so start checking at 25 minutes by gently pressing the top—it should spring back slightly. Let them cool on the sheet for 10 minutes before transferring to a wire rack.
⏱ Time: 25-30 minutes
✓ Doneness: Edges are golden and tops spring back gently when pressed
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Variations

Chocolate Chip Banana Oat Cookies

Add 1/2 cup dark chocolate chips to the batter for a richer, indulgent twist. The chocolate pairs beautifully with the banana and cinnamon, creating a crowd-pleasing flavor combo that’s still wholesome.

Note: Fold in chocolate chips gently at the end to avoid melting or breaking them up. Baking time remains the same.

Walnut Cinnamon Banana Cookies

Mix 1/3 cup chopped walnuts into the dough for added crunch and nuttiness. Walnuts complement the cinnamon and banana flavors while boosting texture and nutrition.

Note: Toast walnuts lightly before adding for deeper flavor. Stir in with dry ingredients to distribute evenly.

Vegan Banana Oat Cookies with Chia Seeds

Replace the flax egg with a chia egg (1 tbsp chia seeds + 3 tbsp water) for a slightly different texture and nutritional profile. Chia adds omega-3s and a mild crunch.

Note: Let chia gel for 10 minutes to ensure proper binding. Expect a slightly firmer cookie texture.

Spiced Banana Oat Cookies with Nutmeg and Cloves

Add 1/4 tsp nutmeg and a pinch of ground cloves to the cinnamon for a warming, spiced flavor perfect for fall or winter snacking.

Note: Mix spices with dry ingredients for even distribution. No change in baking time.

Gluten-Free Banana Oat Cookies

Use certified gluten-free oat flour and oats to make this recipe safe for gluten-sensitive diets. The cookies remain soft and flavorful without compromise.

Note: Ensure all ingredients are labeled gluten-free to avoid contamination. Baking time and texture remain consistent.

Pro Tips

Make sure your bananas are very ripe, almost overripe, for maximum sweetness and moisture.
Ripe bananas contain more sugars and water, which naturally sweeten and soften the cookies. Using firm or underripe bananas results in less flavor and a drier texture, so taking the time to pick the right bananas makes a big difference in the final cookie.
Don’t overmix the batter once you add the dry ingredients.
Overmixing develops gluten, which can make cookies tough and dense. Mixing just until combined keeps the texture tender and soft, preserving the delicate crumb that makes these banana oat cookies so enjoyable.
Use parchment paper or a silicone mat for baking to prevent sticking and promote even baking.
These liners create a non-stick surface that prevents cookies from spreading too much or sticking to the pan. It also helps distribute heat evenly, ensuring a consistent golden crust without burnt bottoms.
Swirl the cinnamon gently after scooping the dough, don’t mix it fully in.
This technique creates beautiful pockets of cinnamon flavor and visual appeal. If you stir the cinnamon into the entire dough, the flavor becomes uniform and less pronounced, losing the special cozy bursts of spice.
Let the cookies cool on the baking sheet for 10 minutes before moving them to a wire rack.
Cooling on the sheet allows the cookies to set up and firm slightly, reducing the chance they’ll fall apart when transferring. Moving them too soon can cause breakage or a gummy texture.
Use freshly ground flaxseed for your flax egg for best binding and freshness.
Ground flaxseed can go rancid over time, losing its nutritional and binding properties. Freshly ground flaxseed ensures your flax egg gels properly, giving your cookies the right structure and a subtle nutty flavor.
Store the cookies in an airtight container at room temperature for up to 3 days.
This keeps the cookies soft and fresh. Exposure to air causes them to dry out quickly. If you want to keep them longer, freezing is a better option to maintain texture and flavor.

Common Mistakes to Avoid

Using underripe bananas

Why it happens Sometimes cooks grab bananas that look yellow but aren’t fully ripe, thinking they’re good enough. This mistake happens because underripe bananas are firmer and less sweet, which can be misleading.

Fix Make sure to use bananas that are heavily spotted or brown. If your bananas aren’t ripe yet, let them sit on the counter a few more days or speed up ripening by placing them in a paper bag with an apple. This ensures natural sweetness and moisture for soft cookies.

Overmixing the batter

Why it happens It’s tempting to mix thoroughly to avoid lumps, but overmixing develops gluten, leading to tough cookies.

Fix Mix the dry ingredients into the wet just until combined. Stop as soon as you don’t see flour streaks. The batter should be thick and slightly sticky. This keeps the texture tender.

Skipping the flax egg

Why it happens Some might omit the flax egg thinking bananas alone are enough to bind the dough, but this causes crumbly cookies.

Fix Always prepare the flax egg by mixing ground flaxseed with water and letting it thicken. It acts as a crucial binder and improves texture without adding eggs.

Not preheating the oven fully

Why it happens People sometimes put cookies in before the oven is fully hot, causing uneven baking and spreading.

Fix Wait until your oven reaches 350°F before baking. Use an oven thermometer if needed. This ensures consistent heat for even rising and browning.

Overbaking the cookies

Why it happens Leaving cookies in too long dries them out, losing their soft texture.

Fix Set a timer for 25 minutes and start checking early. Look for golden edges and a soft center that springs back when pressed. Remove promptly to keep them chewy.

Nutrition

Per Serving:

150 kcal
Calories
3g
Protein G
22g
Carbohydrates G
6g
Fat G
3g
Fiber G
70mg
Sodium
Nutritional values are estimates and may vary based on specific ingredients used.

Storage & Tips

Room Temperature

Store the cookies in an airtight container at room temperature for up to 3 days. Keep them away from direct sunlight or heat sources to prevent drying out. If you notice any loss of softness, briefly warming them in the microwave can help restore moisture.

Refrigerator

You can refrigerate cookies for up to 7 days in an airtight container. They may firm up and lose some softness when chilled, so allow them to come to room temperature or warm slightly before eating to enjoy the best texture.

Freezer

Freeze the cookies in a sealed plastic bag or airtight container for up to 3 months. To prevent freezer burn, wrap cookies individually in parchment paper before placing them in the container. Thaw overnight in the fridge or at room temperature. Warm gently to refresh texture.

Reheating

Reheat cookies in a microwave for 10-15 seconds or in a preheated 300°F oven for 5 minutes. Adding a small dab of butter or a splash of plant milk before warming helps maintain softness. Avoid overheating, which can dry them out.

Make Ahead

You can mix the dough 1 day ahead and keep it covered in the refrigerator. When ready, scoop and swirl cinnamon, then bake fresh. This helps develop flavors and saves time on busy days. Baked cookies also freeze well for quick snacks.

FAQ

Can I use regular oat flour instead of sprouted oat flour?
Yes, you can substitute regular oat flour if sprouted oat flour isn’t available. However, sprouted oat flour tends to be more nutritious and has a slightly sweeter, nuttier flavor. The texture might be a bit different—regular oat flour can make the cookies a little denser but still tasty.
What can I use if I don’t have coconut oil?
You can substitute melted butter or a neutral oil like avocado or vegetable oil. Butter will add a richer flavor but may make the cookies less dairy-free. Neutral oils keep the flavor mild but ensure the cookies remain moist and tender.
How ripe should the bananas be?
Bananas should be very ripe, with plenty of brown spots or mostly brown skin. The riper they are, the sweeter and softer they become, which helps sweeten and moisten the cookies naturally.
Can I make these cookies gluten-free?
Absolutely! Use certified gluten-free oat flour and oats to ensure the recipe is gluten-free. Make sure all other ingredients are also gluten-free to avoid cross-contamination.
How do I store these cookies to keep them soft?
Store cookies in an airtight container at room temperature to maintain softness for up to 3 days. Refrigerating can firm them up, but warming before eating restores softness. Freezing is great for longer storage.
Can I add mix-ins like nuts or chocolate chips?
Yes! Adding about 1/2 cup of mix-ins like chopped nuts or chocolate chips works well. Fold them in gently at the end to avoid overmixing. This adds texture and flavor variety.
Why do my cookies sometimes turn out dry?
Dry cookies usually happen from overbaking or using underripe bananas. Make sure to check the cookies early and use ripe bananas to keep moisture. Also, don’t overmix the batter to avoid tough texture.
Can I freeze the cookie dough?
Yes, you can freeze the dough in cookie-sized scoops on a tray, then transfer to a container once solid. Bake directly from frozen, adding a few extra minutes to the baking time.

Final Thoughts

I hope you enjoy baking and sharing these cozy banana oat cookies as much as I do! Don’t forget to tell me how yours turn out — happy baking!

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4.7 (41 ratings)

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