Effortless Banana Oat Cookies

Featured in: Sweet Treats for Every Occasion

With just a few good-for-you ingredients, these effortless banana oat cookies hit that sweet spot. Bananas bring the moisture and sweetness, while oats add chew. No butter, flour, eggs, or sugar—so anyone can snack without worrying. Make them your own by mixing in nuts, fruit, or chocolate chips. You can bake or air fry them, so it’s totally your call. Stash a few for a grab-and-go morning or satisfy a dessert craving with something you can actually feel good about.
A woman in a kitchen smiling.
By Chloe Chloe
Updated on Mon, 16 Jun 2025 12:44:03 GMT
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Healthy Banana Oatmeal Cookies | cookitdelish.com

Bananas that are nice and ripe join up with hearty oats to whip up chewy, flourless cookies without dumping in any sugar. You'll get a tasty treat that's actually good for you and still knocks out those sweet cravings. Since the bananas are super ripe, you don't need to add sugar—they give the cookies both flavor and moisture that keeps the cookies soft and chewy.

I stumbled onto these cookies when I had a crazy busy week and needed something sweet without messing up my healthy streak. After a few tweaks, this chewy snack is now my favorite afternoon boost. My kids actually ask for them in their lunches, which beats buying those store cookies full of weird stuff.

Delicious Cookie Base

  • Oats: They bring awesome chew and fill you up. Rolled oats give you a chunkier cookie, quick oats make things more even—pick what you like.
  • Bananas: Super ripe ones add all the sweet, help everything stick together, and keep things moist so you don't need any extra sugars.
  • Vanilla extract: Gives the cookies a lovely scent and rich taste—pure vanilla works best if you can get it.

Easy Bake How-To

Final Bake:
Slide your tray into the oven on the middle rack so the heat hits evenly. Let them bake until the edges get a bit golden while the center stays soft—that's how you keep them chewy after they cool.
Shaping Cookies:
Drop big spoonfuls onto your lined tray, two inches apart. Flatten each one with the back of your spoon so they're about a half-inch tall—helps them cook just right.
Time to Mix:
Dump in your oats, cinnamon, and a dash of salt with those mashed bananas. Stir it all up with a basic spoon or spatula until things stick together and feel a little sticky.
Get Creative:
If you want extra stuff like chocolate chips, chopped nuts, or dried fruit, gently mix those in last. Give it a good stir so every bite comes out tasty.
Banana Prep:
Peel your spotted bananas and toss them in a bowl. Smash them with a fork until there are barely any chunks. You're looking for a texture kind of like applesauce so the cookies bake up evenly.
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Easy Simple and Healthy Banana Oatmeal Cookies | cookitdelish.com

My neighbor didn't think cookies without flour, butter, or sugar could taste good. She finally tried one and now she asks for these every week. She even sneaks in hemp and flaxseeds for her grandkids—they just think they're getting a super special treat and have no clue there's extra nutrition inside.

Amazing Natural Sweetness

These treats go all in on the natural sugar from bananas instead of dumping in regular sugar. Bananas have fructose that caramelizes while baking, which makes the flavor way deeper than plain white sugar would. The natural sugar also digests slower, so you don't get that sugar high and crash. Plus, bananas bring good stuff like potassium, vitamin B6, and antioxidants, so they're actually doing you some good while you snack.

Keep Them Fresh

If you want the cookies to stay tasty and soft, stash them right based on how fast you plan to eat them. Leave them out in a sealed box with parchment on the bottom and between layers so they don't stick—for three days they're perfect this way. In the fridge they'll last about a week, but might get a bit more firm. If you're stocking up, freeze cooled-off cookies in a freezer-safe box with paper in between so they don't clump, and they're good for up to three months. When you're ready, just let them thaw on the counter for half an hour, or zap one in the microwave for 15 seconds to make it warm and fresh again.

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Yummy Simple and Healthy Banana Oatmeal Cookies | cookitdelish.com

Frequently Asked Questions

→ How ripe should bananas be for these Effortless Banana Oat Cookies?
Go for super spotty or mostly brown bananas. The riper, the sweeter, and the easier they're to mush up. That’s what helps these cookies hold together since you’re skipping extra sugar and eggs.
→ Can I use regular oats instead of gluten-free oats?
If gluten’s not a problem for you, regular rolled oats totally work. But if you need gluten-free, double-check for that label so you don’t get any sneaky wheat mixed in.
→ Why are my Effortless Banana Oat Cookies falling apart?
If they’re crumbling, it’s probably not enough banana or the bananas aren’t mushy enough. Try an extra bit of banana or mash them up more. Let the mix sit for a few minutes so the oats soak up some of the moisture.
→ How should I store these Effortless Banana Oat Cookies?
Pop them in a sealed container in the fridge for about five days. Bananas make things moist, so the chill helps. If you want to keep them longer, freeze with paper in between each layer.
→ Are these Effortless Banana Oat Cookies good for breakfast?
You bet! Since they’re made with only oats and bananas, they're a great breakfast grab. Pair with fruit or yogurt, or add some nuts or seeds to the cookies for a little extra boost.

Effortless Banana Oat Cookies

Whip up these effortless banana oat cookies with ripe bananas, oats, and a couple of kitchen staples. Gluten-free for a no-stress breakfast or anytime snack.

Prep Time
10 Minutes
Cook Time
15 Minutes
Total Time
25 Minutes
By Chloe: Chloe

Category: Desserts

Difficulty: Easy

Cuisine: American

Yield: 12 Servings (12 cookies)

Dietary: Vegan, Vegetarian, Gluten-Free, Dairy-Free

Ingredients

→ Basic Components

01 Pinch of salt
02 ½ teaspoon cinnamon (optional)
03 1 teaspoon vanilla extract
04 1 cup gluten-free rolled oats
05 2 medium to large bananas, mashed until smooth

→ Extra Toppings

06 1 tablespoon flaxseeds or chia seeds
07 ¼ cup dried fruit (like cranberries, raisins, etc.)
08 ¼ cup dark chocolate chips (go sugar-free if you prefer)
09 ¼ cup chopped nuts (almonds, walnuts, etc.)

Instructions

Step 01

Peel the bananas, throw them in a bowl, and mash them up with a fork or potato masher until the texture is smooth, with no big chunks left.

Step 02

Mix the oats into the bowl with the bananas, adding a splash of vanilla, a small pinch of salt, and cinnamon if you're using it. Give it all a good stir until everything's blended together.

Step 03

Mix in your choice of extras—like nuts for crunch, chocolate chips for sweetness, dried fruit for chewiness, or seeds for a nutrition boost. Stir them gently to avoid overmixing.

Step 04

Grab a baking sheet and cover it with parchment paper. Scoop some dough onto the sheet using a spoon or cookie scoop. Flatten each scoop just a bit with the back of the spoon.

Step 05

Preheat your oven to 350°F (175°C). Bake the cookies on the sheet for 12 to 15 minutes, checking if the edges are golden brown before pulling them out.

Step 06

For an air fryer, preheat to 325°F (165°C). Cook the cookies for 8 to 10 minutes. Start checking at 8 minutes to make sure they don't overcook.

Notes

  1. Only natural sweetness here—these are free of added sugar.
  2. Make sure your bananas are really ripe and spotty for better sweetness.
  3. Store these treats in an airtight container for up to 3 days at room temperature, or keep them in the fridge for a week.

Tools You'll Need

  • Mixing bowl (large)
  • Fork or something to mash bananas
  • Measuring tools (cups and spoons)
  • Baking tray
  • Parchment paper for lining
  • Spoon or scoop for shaping cookies
  • Oven or air fryer to cook them

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • If you add nuts, these may have tree nuts.
  • Be sure to use certified gluten-free oats if needed for celiac disease.

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 85
  • Total Fat: 2 g
  • Total Carbohydrate: 15 g
  • Protein: 2 g