5‑Ingredient Peanut Butter Banana Oat Cookies (Flourless + So Easy!)

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These healthy peanut butter banana oat chocolate chip cookies check every box — delicious, nutritious, flourless, and unbelievably easy. They’re naturally gluten‑free when made with certified GF oats, and they’re fully vegan with dairy‑free chocolate chips. A simple, wholesome cookie that still feels like a treat.

All you need are a few pantry staples and a few minutes of mixing. Enjoy them warm with a glass of milk, crumble them over yogurt, or freeze a batch for quick snacks throughout the week. However you serve them, these banana oat peanut butter chocolate chip cookies always earn a big thumbs‑up.

healthy Flourless Peanut Butter Banana Oat Chocolate Chip Cookies recipe- 5 Ingredients

A Healthy Cookie You’ll Actually Crave

If you’re looking for a delicious, easy, healthy snack you can whip up in minutes, these Peanut Butter Banana Oatmeal Cookies are the answer. They’re packed with wholesome oats, protein‑rich peanut butter, ripe banana, and melty chocolate chips — a simple, feel‑good treat that tastes indulgent but is secretly better for you.

Because they’re naturally sweetened and made with nourishing ingredients, you can enjoy them without the usual cookie guilt… happily savoring one (or three). If you normally reach for classic chocolate chip oat cookies, you’ll feel great choosing these healthy peanut butter oat cookies instead.

This recipe checks every box: quick, flourless, gluten‑free, and made with ingredients you already have on hand. If you’ve got ripe bananas on the counter, this is the perfect way to use them — and if you need even more banana inspiration, don’t miss my 25 Delicious Recipes for Ripe Bananas.

baked oatmeal treats

Why You’ll Love These Cookies

  • 5 ingredients — oats, peanut butter, banana, chocolate chips, vanilla
  • Flourless + naturally gluten‑free
  • Soft, chewy, bakery‑style texture
  • Healthy peanut butter oat cookies that still taste indulgent
  • No mixer, no chill time, no fuss
  • Kid‑friendly + freezer‑friendly

More Delish Oat Recipes? Check out these Healthy Chunky Monkey Oatmeal Bars, these Flourless Peanut Butter Chocolate Chip Cookies, these Chocolate Granola Oat Bar Bites and these Flourless Banana Oat Chocolate Chip Breakfast Cookies for starters!

baked oatmeal treats

Ingredients You Need for Peanut Butter Banana Oatmeal Cookies (5 Ingredients) 

Soft, chewy, flourless cookies made with oats, peanut butter, banana, and chocolate chips. Healthy, simple, and ready in minutes.

  • Rolled oats (or gluten‑free rolled oats)
  • Peanut butter
  • Ripe banana
  • Maple syrup or brown sugar
  • Chocolate chips

Ingredient Notes

  • Rolled oats or gluten‑free rolled oats — use quick oats or old‑fashioned oats depending on the texture you want. You can even mix them.
  • Peanut butter of choice — all‑natural peanut butter works great for a healthy, sugar‑free option.
  • Ripe banana, mashed — the riper, the sweeter.
  • Maple syrup, brown sugar, or xylitol — xylitol (like Lakanto) is a great sugar‑free option.
  • Semi‑sweet or dark chocolate chips — we used Ghirardelli semi‑sweet. Use dairy‑free chips for a sugar‑free/dairy‑free option.

healthy Flourless Peanut Butter Banana Oat Chocolate Chip Cookies recipe- 5 Ingredients

Instructions How to Make Flourless Peanut Butter Banana Oat Chocolate Chip Cookies

  1. Preheat the oven to 350F. Line a large baking tray or cookie sheet with parchment paper.
  2. In a large mixing bowl, add oats, mashed banana and peanut butter and mix well. Stir in chocolate chips, reserving a few to top cookies with if you wish.
  3. Using a medium cookie scoop, scoop or form 12 balls of dough and place on the lined tray. Add chocolate chips to the tops if desired. These cookies will bake the way you press them down, so you can make them thick or thin. For thinner, bake 8-10 minutes. For thicker, bake for 10-12 minutes. The cookies will firm up as they cool, so let them cool on baking sheets before transferring to wire rack.

Banana Oat Chocolate Chip Breakfast Cookies

Substitutions & Add‑Ins

  • Oats: quick oats give the best texture; rolled oats work but are chewier
  • Peanut butter: swap almond or cashew butter
  • Banana: must be ripe; adds sweetness + binding
  • Chocolate chips: replace with raisins, nuts, or leave out for healthy oat cookies
  • Protein boost: add 1 scoop vanilla protein powder + 1–2 tbsp extra mashed banana if needed

healthy Flourless Peanut Butter Banana Oat Chocolate Chip Cookies recipe- 5 Ingredients

How to Store Peanut Butter Banana Oat Cookies

  • Room temp: 3–4 days in an airtight container
  • Fridge: up to 1 week
  • Freezer: 2–3 months (these freeze beautifully)

Tips for the Best Peanut Butter Banana Oat Cookies

  • Choose your oats: Use rolled oats, quick oats, or a mix of both depending on the texture you want. Gluten‑free oats work perfectly for a gluten‑free option.
  • Customize the thickness: For thicker cookies, don’t flatten the dough before baking. For thinner cookies, gently press them down.
  • Adjust baking time: Thicker cookies may need an extra minute or two. Thinner cookies bake faster — just keep an eye on them.
  • Enjoy warm or cold: These cookies are amazing warm from the oven, but they’re just as tasty chilled straight from the fridge.

FAQs

Are peanut butter banana oat cookies healthy?

Yes — they’re flourless, naturally sweetened with banana, and made with whole‑grain oats. Add chocolate chips or keep them plain for healthy peanut butter oat cookies.

Can I make these without chocolate chips?

Absolutely. They become simple healthy oat cookies with a soft banana‑bread vibe.

Can I use rolled oats?

Yes, but the texture will be heartier. Quick oats give the classic soft, chewy cookie.

Can I make these vegan?

They’re already vegan as long as you use dairy‑free chocolate chips.

Can I add protein powder?

Yes — add 1 scoop vanilla protein powder and 1–2 tbsp extra mashed banana if the dough feels dry. This turns them into healthy peanut butter banana oatmeal cookies with extra protein.

Flourless Peanut Butter Banana Oat Chocolate Chip Cookies

These healthy peanut butter banana oat chocolate chip cookies are delicious, nutritious, and super easy to make. They are the perfect treat for any occasion and a great way to satisfy your sweet tooth without compromising your health.  With the options of making them vegan with non-dairy chocolate chips or making them gluten free with gluten free oats, you can make them even more healthier!

All you need are a few simple, wholesome ingredients, and a few minutes of your time. Go ahead and give them a try – you won’t be disappointed.

So good dipped in some milk while warm or cold. A big thumbs up for this healthy banana oat cookie recipe loaded with chocolate chips and peanut butter!

More Healthy Cookie Vibes? 

Flourless Peanut Butter Banana Oat Chocolate Chip Cookies - 5 Ingredients

Flourless Peanut Butter Banana Oat Chocolate Chip Cookies

Kim Lange
These healthy 5 Ingredient Flourless Peanut Butter Banana Oat Chocolate Chip Cookies are insanely delicious with just the right amount of delicious peanut butter, banana and chocolate chip flavors shining through.  Can be made gluten-free, if using gluten-free oats. Vegan if using non-dairy chocolate chips.
No ratings yet
Prep Time 5 minutes
Cook Time 10 minutes
Course Breakfast, Dessert
Cuisine American
Servings 12 Servings
Calories

Ingredients
  

Flourless Peanut Butter Banana Oat Chocolate Chip Cookies

  • 2 cups rolled oats or gluten free rolled oats for gluten-free option
  • ½ cup peanut butter of choice use all natural for healthy sugar-free option
  • 1 ¼ cups ripe banana mashed
  • 1-2 tablespoons maple syrup or brown sugar or xylitol, like Lakanto for healthy sugar-free option
  • ½ cup chocolate chips we used Ghirardelli semi-sweet, use dairy-free for sugar-free/dairy-free option

Instructions
 

  • Preheat the oven to 350F. Line a large baking tray or cookie sheet with parchment paper.
  • In a large mixing bowl, add oats, mashed banana and peanut butter and mix well. Mix in chocolate chips, reserving a few to top cookies with if you wish.
  • Using a medium scoop, scoop or form 12 balls of dough and place on the lined tray. Add chocolate chips to the tops if desired. These cookies will bake the way you press them down, so you can make them thick or thin. For thinner, bake 8-10 minutes. For thicker, bake for 10-12 minutes. The cookies will firm up as they cool, so let them cool on cooking sheet before transferring to wire rack.

Video

Notes

  • To store: Store cookies in the fridge. Place them in a ziplock or tupperware type container.
  • To freeze: Frozen cookies will keep fresh for at least 2 months. Place in freezer-friendly containers.
  • To thaw: Allow to cool at room temperature until no longer frozen. If you'd like, you can also slightly warm up cookies in the microwave.
  • Can use a combination of oats.  Can use old-fashioned rolled oats and minute oats together, if desired.  
  • If you want thicker cookies, don't pat them down.  You can make them as thick or as thin as you like, just monitor the baking time.  Thicker will require a few more minutes.
Keyword 3 ingredient cookies, 5 ingredients, banana, chocolate chip, cookies, chocolate cookies, peanut butter, chocolate chips, chocolate and peanut butter, gluten-free cookies, healthy cookies, oats, vegan cookies
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