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If you’ve ever looked at a too-brown banana on your counter and thought, “I cannot bake another banana bread,” these soft peanut butter banana cookies are your new escape route. They’re plush, chewy, full of peanut butter flavor, and just lightly kissed with banana—not a full-on banana bread situation.
These are the kind of cookies I make on a Tuesday afternoon when the house is a little too quiet, or when I need something sweet that doesn’t feel fussy. One bowl (okay, two if we’re being totally honest), no chilling, and about 25 minutes between craving and cookie. They also happen to be a very charming way to use up that single lonely banana that isn’t enough for banana bread but too spotted to eat plain.
In this post I’ll walk you throughexactlyhow I make them: what kind of peanut butter works best, how ripe the bananas should be, what to do if your dough feels too sticky, and how to know when they’re perfectly baked. I’ll also share my favorite mix-ins (chocolate chips are a yes, always) and a few mistakes I’ve absolutely made so you don’t have to.
These cookies were born on one of those days when everything felt just a bit off. My daughter had dragged her feet getting ready for school, my inbox was a small disaster, and I had exactly one overripe banana staring at me from the counter like it was judging my life choices.
I didn’t have the patience for banana bread, and I definitely didn’t have the energy for a complicated dessert. But Ididhave peanut butter (because when do I not?) and the memory of a peanut butter-banana sandwich my mom used to pack in my lunch when we were out of jelly. That sandwich was my comfort food growing up, and I figured, why not turn that combination into cookies?
The first batch was—and I’m being kind here—a little strange. Too much banana, not enough peanut butter, and I baked them way too long. They puffed up into cakey little domes instead of staying soft and chewy. My husband diplomatically said, “They taste healthy,” which, in cookie language, is not exactly what we’re going for.
Over the next few weeks I tweaked and retested. Less banana, more peanut butter, more brown sugar for that chew, and a mix of baking soda and baking powder to keep them soft without turning them into banana muffins. When my kids started asking, “Are there more of those banana peanut butter cookies?” I knew we’d landed on a keeper.
These are pantry-cookie vibes: mostly staple ingredients, and lots of room for flexibility. Here’s what I use and why it matters, plus where you can improvise a little.
Life happens. The pantry is never as full as we think it is. Here are some tested swaps that actually work, and what to watch out for when you make them.
| Ingredient | Best Substitute | Notes |
|---|---|---|
| All-purpose flour | 1:1 gluten-free baking blend | Use a blend labeled for baking. Dough may be slightly softer; chill 20 minutes if it feels loose. |
| Unsalted butter | Salted butter | Reduce added salt to a small pinch. Flavor will be a bit more buttery-salty, which isn’t a bad thing here. |
| Unsalted butter | Coconut oil (refined) | Use slightly less (7 tablespoons). Texture will be a bit more tender, and cookies may spread more. |
| Creamy peanut butter | Natural peanut butter | Stir very well. Expect a slightly crumblier dough; chill 20-30 minutes and don’t overbake. |
| Brown sugar | Granulated sugar + 1 teaspoon molasses | Mix before adding. In a pinch, just use white sugar, but cookies will be a touch less chewy. |
| Egg | 1 flax egg (1 tbsp ground flax + 3 tbsp water) | Let it thicken 5 minutes. Cookies will be a bit denser but still tasty. Good vegan-friendly option if using plant butter. |
| Banana | Unsweetened applesauce (1/2 cup) | Cookies will be less banana-forward (obviously) and slightly softer. Add 1-2 tablespoons extra flour if the dough feels wet. |
You absolutely donotneed a stand mixer and marble countertops to make these. Here’s what I actually pull out of my very normal kitchen cabinets:
If you only have one mixing bowl, you can still make this work—just mix your dry ingredients on a big piece of parchment or in a large measuring cup instead.
Here’s exactly how I make these peanut butter banana cookies, including little details that really do make a difference.
And that’s it. No chilling, no drama, just soft cookies and a kitchen that smells like a hug.
Every oven has a personality. Mine runs a little hot in the back right corner, which I learned after a batch of cookies came out half-golden, half-blond. Here’s how to work with what you have—and a couple of fun alternative methods if you like to experiment.
If you just want a few warm cookies after dinner, you can bake little scoops of this dough in an air fryer:
They won’t brown exactly the same as oven-baked cookies, but they’re great in a pinch.
On lazy nights, I’ve pressed this dough into a small, greased oven-safe skillet and baked it at 350b0F for about 18-20 minutes. Scoop ice cream over the warm center and put the skillet right in the middle of the table with spoons. It’s not glamorous, but it is absolutely delightful.
Because we’re deliberately underbaking these a bit for maximum softness, it can feel tricky to know when to pull them. Here’s what I look for every time:
If you’re ever in doubt, take them out sooner rather than later. Slightly underbaked cookies keep their soft, fudgy center; overbaked ones just go dry. I would rather eat a gooier cookie with a spoon than a dry one that crumbles in my hands.
I can never leave a cookie recipe alone for long. Here’s what I’ve experimented with, and my honest thoughts.
Honestly, my favorite way is still the classic version with a modest handful of chocolate chips and a sprinkle of flaky salt. Simple, cozy, and balanced.
Believe me, I’ve had weird batches. Here are a few common issues and how to rescue or prevent them.
On the rare occasion that these cookies last longer than an afternoon, here’s how I keep them soft and delicious.
I love keeping a stash of frozen dough balls for “emergency” dessert nights—you know, the kind where you just need one warm cookie and a quiet moment.
These cookies are casual, cozy, and very at-home-in-sweatpants, so I usually serve them in the simplest possible ways.
There are fancier desserts I make for special occasions, but these peanut butter banana cookies have quietly become one of my most-made recipes. They’re the cookies I throw together when the day has gone sideways, when there’s one too-ripe banana on the counter, or when my daughter texts from the next room asking, “Is there anything sweet in the house?”
As a woman who’s constantly juggling a hundred tiny tasks, I love that this recipe doesn’t ask much of me. No chilling overnight, no special ingredients, no intricate decorating. Just a bowl, a spoon, and a half-hour slice of calm that ends with something warm and soft in my hands.
And honestly, there’s something quietly comforting about turning a “past-its-prime” banana into something lovely. A tiny, edible reminder that a lot of good things in life come from the slightly messy, imperfect bits we were about to toss.
Yes, this recipe doubles really well. Use two large eggs, and I recommend mixing in a stand mixer if you have one, simply because the dough gets heavier. Bake in batches so you don’t overcrowd the oven.
Absolutely. For smaller cookies (about 1 tablespoon dough), start checking around 7-8 minutes. For big bakery-style cookies (2-3 tablespoons dough), bake closer to 11-13 minutes and leave more space between them on the pan.
The banana is part of the charm here, but if you really don’t like it or don’t have any, you can substitute unsweetened applesauce. The cookies will taste less banana-forward and a bit more like very soft peanut butter cookies.
Dry cookies usually mean they baked a bit too long or there was too much flour. Try measuring flour by spooning and leveling, and pull the cookies out when the centers still look slightly soft.
Yes, but it slightly changes the texture. Chunky peanut butter plus added chopped peanuts can make them a little too crumbly. If you use chunky, I’d skip extra nuts or reduce them.
My kids love them, and they’re great lunchbox treats. Just be mindful of school peanut policies—these are definitely not nut-free.
The banana flavor is present but not overwhelming. It’s more of a soft background note, like banana bread met a peanut butter cookie and they agreed to share the spotlight.
The exact tools and ingredients matches I use in my kitchen to get that perfect cookie texture.
"Kitchen appliance for mixing, beating, and whipping ingredients"
"Utensil for scooping or stirring ingredients"
"Flat metal tray used for baking cookies, pastries, and more"
Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper or a silicone baking mat to ensure the cookies bake evenly and don't over-brown on the bottom.
In a small bowl, mash the ripe banana with a fork until mostly smooth, with only small lumps. Measure out about 1/2 cup mashed banana and set aside; save or snack on any extra.
In a medium bowl, whisk together the flour, baking soda, baking powder, salt, and ground cinnamon (if using) until well combined and evenly distributed.
In a large mixing bowl, beat the softened butter, peanut butter, brown sugar, and granulated sugar together with a hand mixer on medium speed until light and fluffy, about 2 minutes. Scrape down the sides of the bowl as needed.
Beat in the egg and vanilla until just combined, then mix in the mashed banana. The mixture may look slightly curdled or loose at this stage, which is normal.
Add the dry ingredients to the wet ingredients in two additions, mixing on low speed or with a spatula just until no streaks of flour remain. If using chocolate chips or chopped peanuts, gently fold them in now. The dough will be soft but should hold its shape when scooped.
Use a cookie scoop or spoon to portion heaping tablespoon-sized balls of dough onto the prepared baking sheets, spacing them about 2 inches apart. If desired, gently press a fork in a crisscross pattern on top of each ball without flattening them too much.
Bake the cookies for 911 minutes, rotating the pans halfway through if needed. The edges should look set and very lightly golden while the centers remain soft and slightly puffy. Do not overbake.
Remove the baking sheets from the oven and let the cookies cool on the pans for about 5 minutes, then transfer them to a cooling rack to cool completely. If using flaky sea salt, sprinkle a small pinch over each cookie while still warm. Enjoy warm or at room temperature.
20 servings per recipe
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
Nutritional values are estimates. Ingredient brands and manufacturing processes vary. This site does not provide medical dietary advice. Always verify ingredient labels if you have severe allergies.
For the best texture, measure the mashed banana to about 1/2 cup instead of relying on "one banana" alone. Very ripe bananas with lots of brown spots give the best flavor without making the dough too wet. If using natural peanut butter, stir very well and consider chilling the dough 20 minutes before baking to prevent excess spread. Bake just until the edges are set and the centers look slightly underdone; they will firm up as they cool and stay softer longer.
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