There’s something magical about the aroma of freshly baked oatmeal cookies wafting through the house. The sweet scent mingles with a hint of cinnamon and brings back memories of cozy afternoons spent in the kitchen. These oatmeal cookies with 3 ingredients are not just easy to make; they transport you to your childhood, where every bite is a delightful reminder of simpler times.

Picture this: you’re sitting on the couch, a warm cookie in hand, while your favorite show plays in the background. Life feels perfect, doesn’t it? Whether it’s an impromptu gathering with friends or a quiet evening at home, these cookies are the perfect companion, promising comfort and joy in every crumb.
Why You'll Love This Recipe
- These oatmeal cookies require only three simple ingredients, making them incredibly easy to whip up
- You can personalize them by adding extras like chocolate chips or nuts for extra flavor
- The golden-brown color and enticing aroma make them irresistible right out of the oven
- They are also a guilt-free snack option that satisfies your sweet tooth!
Friends often joke that I might have been raised by cookie monsters because I can’t resist any cookie recipe that comes my way! When I first made these oatmeal cookies, my family couldn’t believe how delicious they were with just three ingredients.
Essential Ingredients
Here’s what you’ll need to make this delicious dish:
- Rolled Oats: Use old-fashioned rolled oats for chewy texture; they’re perfect for holding all those sweet flavors.
- Mashed Bananas: Ripe bananas work best; their sweetness binds everything together while adding a lovely flavor.
- Peanut Butter: Choose creamy or crunchy based on your preference; it adds richness and depth to every bite.
The full ingredients list, including measurements, is provided in the recipe card directly below.

How to Make Oatmeal Cookies with 3 Ingredients
Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper so you can easily remove those golden goodies without making a mess.
Combine Ingredients: In a large bowl, mash ripe bananas until smooth. Stir in rolled oats and peanut butter until everything is well mixed and forms a sticky dough.
Scoop and Shape: Using a spoon or cookie scoop, drop dollops of dough onto your prepared baking sheet. Keep some space between each scoop as they will spread slightly while baking.
Bake Until Golden: Pop the tray into your preheated oven and bake for about 10-12 minutes or until they turn golden brown. Enjoy the mouthwatering aromas filling your kitchen!
Cool Before Enjoying: Remove from the oven and let them cool on the baking sheet for a few minutes before transferring them to a wire rack. This step helps firm them up for that perfect bite!
These oatmeal cookies are not just snacks; they’re little bundles of warmth that will make you smile long after they’re gone. Each bite is chewy yet satisfying—perfect for dunking in milk or enjoying as an afternoon pick-me-up!
You Must Know
- Oatmeal cookies with 3 ingredients make for quick, easy, and healthy snacks
- They are perfect for busy days or as a fun baking project with kids
- The delightful aroma of baking oats fills your kitchen, creating a warm and inviting atmosphere
Perfecting the Cooking Process
Start by preheating your oven to 350°F (175°C). Mix all three ingredients in a bowl until well combined. Shape into cookies and place them on a baking sheet lined with parchment paper before baking them for 10-12 minutes.
Add Your Touch
Feel free to add chocolate chips, nuts, or dried fruits to personalize your oatmeal cookies. You can also swap out the sweetener for honey or maple syrup if you prefer something different.
Storing & Reheating
Store leftover oatmeal cookies in an airtight container at room temperature for up to a week. To enjoy them warm again, pop them in the microwave for about 10 seconds.
Chef's Helpful Tips
- Use ripe bananas for natural sweetness and moisture; this enhances flavor while keeping cookies soft
- Don’t overbake them; a slightly underbaked cookie remains chewy and delicious!
- Experiment with spices like cinnamon to elevate the flavor profile of your cookies
Baking these oatmeal cookies always reminds me of my childhood. I remember making these with my grandma, who would sneak in extra chocolate chips whenever my parents weren’t looking.
FAQ
Can I use other types of oats?
Yes, rolled oats work best, but quick oats will also do the trick.
Are these cookies gluten-free?
If you use certified gluten-free oats, these oatmeal cookies are indeed gluten-free.
How can I make these vegan?
Substitute honey with maple syrup or agave nectar for a completely vegan option.

Easy 3-Ingredient Oatmeal Cookies
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- Author: Ann Foster
- Total Time: 22 minutes
- Yield: Approximately 12 cookies 1x
Description
Indulge in the nostalgia of homemade oatmeal cookies with this simple 3-ingredient recipe. These chewy treats combine rolled oats, ripe bananas, and peanut butter for a delightful snack that’s both satisfying and healthy. Perfect for any occasion, these cookies are quick to make and can be customized with your favorite mix-ins. Enjoy them fresh from the oven or as a guilt-free dessert throughout the week!
Ingredients
- 2 ripe bananas, mashed
- 1 cup rolled oats
- 1/2 cup peanut butter (creamy or crunchy)
Instructions
- Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.
- In a large bowl, mash the ripe bananas until smooth.
- Stir in the rolled oats and peanut butter until fully combined into a sticky dough.
- Using a spoon or cookie scoop, drop dollops of dough onto the prepared baking sheet, leaving space between each.
- Bake for 10-12 minutes until golden brown.
- Allow cookies to cool on the baking sheet for a few minutes before transferring them to a wire rack.
- Prep Time: 10 minutes
- Cook Time: 12 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 cookie (30g)
- Calories: 90
- Sugar: 4g
- Sodium: 50mg
- Fat: 4g
- Saturated Fat: 1g
- Unsaturated Fat: 3g
- Trans Fat: 0g
- Carbohydrates: 13g
- Fiber: 2g
- Protein: 3g
- Cholesterol: 0mg






