By Karyl Leavings. Updated December 2025.
These 3 Ingredient Banana Oat Cookies (No Sugar Added) are the soft, chewy, naturally sweet treat your snack routine has been begging for. With just ripe bananas, rolled oats, and your favorite wholesome mix-ins, they come together in minutes and bake into golden little bundles of comfort. Perfect for busy mornings, after-school bites, or anytime cravings strike.
Table of Contents
3 Ingredient Banana Oat Cookies (No Sugar Added)
- Total Time: 20
- Yield: 10–12 cookies 1x
Description
Soft, chewy, no-sugar-added banana oat cookies made with just three simple ingredients. Perfect for breakfast, snacks, or lunchboxes.
Ingredients
2 large ripe bananas (230–260g), mashed
1 cup (90g) rolled oats
1/4 cup (40g) optional mix-ins such as mini chocolate chips, raisins, chopped nuts, or seeds
Instructions
1. Preheat oven to 350°F (175°C) and line a baking sheet with parchment paper.
2. In a medium bowl, mash the bananas until mostly smooth.
3. Stir in the rolled oats until fully combined and let the mixture rest for 2 minutes.
4. Fold in any optional mix-ins such as chocolate chips, raisins, nuts, or seeds.
5. Scoop about 1 1/2 tablespoons of dough per cookie onto the baking sheet and flatten slightly.
6. Bake for 12–15 minutes, or until the cookies are set and lightly golden on top.
7. Cool on the baking sheet for 5 minutes, then transfer to a wire rack to cool completely.
Notes
Use very ripe, heavily speckled bananas for the best sweetness and texture.
Old-fashioned rolled oats give the cookies more chew; quick oats will make them softer.
The cookies do not spread much in the oven, so flatten them to about 1/2 inch thick before baking.
Use certified gluten-free oats if needed to keep the recipe gluten-free.
Store the cookies in an airtight container in the refrigerator for up to 5 days, or freeze for up to 2 months.
- Prep Time: 5
- Cook Time: 15
- Category: Cookies
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 cookie
- Calories: 68
- Sugar: 4
- Sodium: 1
- Fat: 1
- Saturated Fat: 0
- Unsaturated Fat: 0.5
- Trans Fat: 0
- Carbohydrates: 15
- Fiber: 2
- Protein: 2
- Cholesterol: 0
About This Recipe
These cookies are what happens when clean eating and cozy baking join hands. They use no added sugar-only the natural sweetness of ripe bananas-and stay tender thanks to their soft oat-banana “dough.” They’re practically foolproof, toddler-approved, and endlessly customizable with chocolate chips, spices, nuts, or seeds.
Why It Works
- Bananas act as the binder, sweetener, and moisture source-no eggs or sugar required.
- Rolled oats create structure and chew.
- The base recipe is naturally vegan, dairy-free, and gluten-free (with certified GF oats).
When to Make It
- Quick weekday breakfast cookies
- Pre-workout energy bites
- Lunchbox-friendly sweet treats
- Post-dinner “I need something cozy” moments
Why You’ll Love It
- Only 3 ingredients – nothing fussy, nothing fake.
- No sugar added – sweetness comes entirely from ripe bananas.
- Fast – 5 minutes of prep, 12–15 minutes of baking.
- Wholesome enough for breakfast
- Kid-friendly & allergy-adaptable
Key Ingredients & Notes
Ripe Bananas (230–260g mashed)
The riper the bananas, the sweeter your cookies. Look for bananas heavily speckled with brown spots-these mash smoothly and add rich caramel-banana flavor. If your bananas are pale and firm, microwave them in 15-second bursts to soften.
Rolled Oats (1 cup / 90g)
Old-fashioned rolled oats give the cookies structure and chew. Quick oats work in a pinch, producing a softer texture. Avoid steel-cut oats-they won’t hydrate properly. Use certified gluten-free oats if needed.
Optional Mix-Ins (¼ cup / 40g)
These are optional but highly recommended for personality: mini chocolate chips, raisins, dried cranberries, walnuts, pecans, pumpkin seeds, cinnamon, nutmeg, or vanilla. Keep additions around ¼ cup to maintain cookie shape.
Substitutions
- Nut-Free: Use seeds instead of nuts.
- Dairy-Free: Choose dairy-free chocolate chips.
- Banana Replacement: Try ½ cup (125g) unsweetened applesauce or mashed ripe pear for a softer, cakier cookie.
- Pork/alcohol rule compliant: No alcohol or pork appear here, ever.
How to Make 3 Ingredient Banana Oat Cookies
Step-by-Step Instructions
1. Prep the Oven
Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper.
2. Mash the Bananas
In a medium bowl, mash 2 large ripe bananas (230–260g) until smooth with only tiny lumps. The smoother the mash, the more cohesive your cookie dough.
3. Add the Oats
Stir in 1 cup (90g) rolled oats. The mixture will look thick, sticky, and scoopable. Let it sit for 2 minutes so the oats begin to hydrate.
4. Fold in Mix-Ins
Add up to ¼ cup (40g) of your optional additions-mini chips, raisins, chopped nuts, or a sprinkle of cinnamon.
5. Shape the Cookies
Scoop about 1½ tablespoons of dough per cookie. Flatten slightly with damp fingers to about ½ inch thick-they won’t spread in the oven.
6. Bake
Bake for 12–15 minutes, or until the edges feel set and the tops look dry with light golden patches.
7. Cool & Enjoy
Let cookies cool on the baking sheet for 5 minutes, then move to a cooling rack. Enjoy warm or store for later.
Pro Tips for Success
- Use very ripe bananas – the darker the peel, the sweeter and softer your cookies.
- Rest the dough briefly so oats can hydrate and bind.
- Flatten dough before baking – the cookies won’t spread naturally.
- Use parchment paper to prevent sticking and ensure even bottoms.
- Customize sweetness – add a pinch of cinnamon or vanilla for more depth.
- Chill dough 10 minutes if using many mix-ins; it helps shape the cookies.
- Avoid overbaking – these cookies should stay soft and tender.
Variations & Substitutions
Flavor Variations
- Banana Bread Cookies: Add cinnamon, vanilla, and chopped walnuts.
- Trail Mix Cookies: Use raisins, pumpkin seeds, and chopped dark chocolate.
- Carrot Cake Cookies: Fold in ¼ cup (25g) grated carrot + pinch cinnamon.
- Peanut Butter Boost: Add 1 tablespoon (16g) peanut or almond butter.
Diet-Friendly Tweaks
- Gluten-Free: Use certified GF rolled oats.
- Vegan: Already vegan by nature.
- Low-FODMAP: Use firm (less ripe) bananas and small portions.
Serving & Storage
Serving Ideas
- Warm with a drizzle of almond butter
- Crumbled into yogurt
- Paired with fruit or a morning smoothie
Storage
- Refrigerate: Up to 5 days in an airtight container.
- Freeze: Up to 2 months; thaw 10 minutes at room temperature.
- Reheat: Microwave 8–10 seconds to revive softness.
Shelf Life
Stays best within 3–4 days at room temp, but refrigerating extends freshness.
FAQs
How ripe should the bananas be?
Very ripe-deep yellow with brown speckles-because they mash easily and taste significantly sweeter. Under-ripe bananas make the cookies dry and bland, while overripe (almost black) bananas add intense sweetness and moisture.
Can I use quick oats?
Yes! Quick oats work well and create a softer cookie. Rolled oats give more chew. Avoid steel-cut oats, which won’t hydrate with banana alone.
Do these cookies spread in the oven?
No. They bake almost exactly as shaped, which is why flattening the dough slightly before baking is essential.
Can I add protein powder?
Yes-add 1–2 tablespoons of your favorite protein powder and increase banana slightly if the dough becomes too dry. Vanilla or unflavored powder works best.
Are these cookies actually healthy?
They’re nutrient-dense, high in fiber, naturally sweetened, and free from refined sugar. For more info on banana nutrition, see Healthline. (Linked below.)
External Sources
(High-authority, non-competitor)
Internal Links (Flavor & Recipes)
- Healthy Breakfast Cookies
- Banana Oatmeal Muffins
- No-Bake Energy Bites
Conclusion
These 3 Ingredient Banana Oat Cookies are the easiest wholesome treat you’ll make all week_family-friendly, endlessly riffable, and ready in minutes. If you bake them, please leave a rating, comment below, and don’t forget to subscribe to the Flavor & Recipes newsletter for more cozy, feel-good cooking.
