Peanut Butter Banana Cookies

Quick Answer: Peanut butter banana cookies are soft, chewy cookies made with ripe bananas and creamy peanut butter. They bake in 12 minutes, yield about 24 cookies per batch, and hold up on a dessert table for 2 hours without drying out.

Soft center, slightly crisp edges, and that first hit of warm peanut butter when you bite through — that’s what makes peanut butter banana cookies worth the 25 minutes they take. The ripe banana keeps the crumb tender without making anything cakey, and the peanut butter adds enough fat and salt that you don’t need much else to make these work.

I’ve set these out at showers where the dessert table had six other options. This was the plate that emptied first. Peanut butter banana cookies don’t look fussy. They don’t need to be. The flavor does the work, and the golden edges make the whole tray look like you spent more time than you did.

Why Peanut Butter Banana Cookies Work at a Baby Shower

Peanut butter banana cookies hit a spot that most shower desserts miss. They’re naturally sweet from the ripe banana, so the sugar content stays lower than a standard butter cookie. That matters when you’re feeding a mixed group — expecting moms, older guests, kids who grab two before anyone notices. The peanut butter delivers protein and healthy fats, which Healthline notes can help keep blood sugar steady between meals.

And the texture holds. These aren’t fragile cookies that crumble when someone picks them up off a platter. Peanut butter banana cookies stay soft for hours, which means you can set them out early and stop worrying about them going stale before the gifts are opened.

Ingredients

• 2 large ripe bananas (about 1 cup mashed)
• ¾ cup creamy peanut butter
• 1½ cups all-purpose flour
• ½ cup packed brown sugar
• ¼ cup granulated sugar
• 1 large egg
• 1 teaspoon vanilla extract
• 1 teaspoon baking soda
• ½ teaspoon salt
• ½ cup semi-sweet chocolate chips (optional)

The bananas need to be ripe — spotty brown, soft enough to mash with a fork. Underripe bananas won’t break down properly and you’ll get lumpy dough that doesn’t spread right. Use the creamy, shelf-stable peanut butter (Jif, Skippy), not natural. Natural peanut butter separates and throws off the moisture balance in peanut butter banana cookies.

What you’ll need:

• Silicone Baking Mat — nonstick surface so peanut butter banana cookies release cleanly without tearing the bottoms
• OXO Cookie Scoop (Medium) — consistent 1-tablespoon portions mean every cookie bakes evenly
• KitchenAid Mixing Bowls — wide enough to fold dough without flour spilling over the edges

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How to Make Peanut Butter Banana Cookies Step by Step

1. Preheat your oven to 350°F (175°C). Line two baking sheets with parchment paper or silicone baking mats.
2. Mash the bananas in a large bowl with a fork until mostly smooth. A few small lumps are fine, but no large chunks.
3. Add the peanut butter, brown sugar, granulated sugar, egg, and vanilla to the mashed banana. Stir with a spatula until everything is combined and the mixture looks glossy.
4. In a separate bowl, whisk together the flour, baking soda, and salt. Pour the dry ingredients into the wet mixture and fold until just combined. Don’t overmix — stop when the dry streaks disappear. As The Kitchn explains, overworked cookie dough develops too much gluten and bakes up tough rather than tender.
5. Fold in the chocolate chips if using them.
6. Scoop rounded tablespoons of dough onto the prepared sheets, spacing them about 2 inches apart. Press each ball down slightly with the back of the spoon.
7. Bake for 10–12 minutes until the edges turn golden but the centers still look slightly underdone. They’ll firm up as they cool.
8. Let the peanut butter banana cookies cool on the baking sheet for 5 minutes before transferring to a wire rack.

Pro Tips

Don’t overbake. This is the step most people mess up. Pull the peanut butter banana cookies out when the centers look barely set — they continue cooking on the hot sheet. If you wait for the middle to look done in the oven, you’ll end up with dry, crumbly cookies by the time they cool.

Use a cookie scoop for uniform sizing. Consistent peanut butter banana cookies look better on a platter and bake at the same rate, so nothing burns while the big ones catch up.

If the dough feels too sticky to handle, refrigerate it for 20 minutes. Cold dough holds its shape and bakes into thicker cookies with chewier centers. This matters more in warm kitchens.

How Much to Make for a Baby Shower

Each batch makes about 24 peanut butter banana cookies, assuming 1 rounded tablespoon per cookie.

• 15 guests → 30 cookies (1.5 batches)
• 20 guests → 40 cookies (2 batches)
• 30 guests → 60 cookies (2.5 batches)

Count on 2 peanut butter banana cookies per person when they’re part of a larger dessert spread with 3–4 other options. If these are one of only two desserts, bump it to 3 per person.

Peanut Butter Banana Cookie Variations

Chocolate Chip Peanut Butter Banana Cookies

Fold ¾ cup of semi-sweet chocolate chips into the dough right before scooping. The melted chocolate pockets against the salty peanut butter create that sweet-savory contrast that makes people reach for a second one. Use mini chips if you want more even distribution across smaller cookies.

Oat Peanut Butter Banana Cookies

Replace ½ cup of the flour with old-fashioned rolled oats. The texture shifts — chewier, heartier, with a bit of grain bite throughout. These feel more like a breakfast cookie, which is the right move for a brunch shower. The oats absorb extra moisture, so the peanut butter banana cookies hold their shape better on the tray too.

Cinnamon Swirl Peanut Butter Banana Cookies

Mix 1 tablespoon of ground cinnamon with 2 tablespoons of sugar. After scooping the dough balls, press your thumb into the center and drop a pinch of the cinnamon sugar in. Swirl it with a toothpick. The cinnamon deepens the banana flavor and adds a warm, spiced note that’s hard to walk past on the table.

Mini Peanut Butter Banana Cookie Bites

Use a teaspoon-size scoop instead of a tablespoon. Reduce baking time to 7–8 minutes. These bite-size peanut butter banana cookies are two-bite portions that work better at standing showers where guests eat with one hand. Pile them on a tiered stand for some height on the table.

Which Baby Shower Themes Do Peanut Butter Banana Cookies Fit?

Peanut butter banana cookies land naturally in warm, textured themes. A Teddy Bear Baby Shower is the most obvious match — the golden-brown color and round shape fit right in with honey-toned decor and plush table settings. For a Woodland Baby Shower, arrange them on a wooden board with wax paper underneath. The rustic look works without any extra styling. A Boho Baby Shower pulls these in well too, especially the cinnamon swirl variation served alongside dried flower arrangements and earth-tone linens.

What to Serve With Peanut Butter Banana Cookies at a Baby Shower

Peanut butter banana cookies are rich and nutty, so you want pairings that cut in a different direction.

Oatmeal Cream Cookies bring a softer, cream-filled texture that contrasts the dense chew of the banana base. Set both on the same platter for a two-cookie spread that covers comfort dessert territory without any overlap.

Lemon Cookies add a bright, citrus-forward bite that resets the palate between the heavier peanut butter flavor. The color contrast alone — golden brown next to pale lemon — looks intentional and polished on the table.

Pink Drinks give you a cold, sparkling option that washes down the richness. The fizz and fruit cut right through the peanut butter, and the pink color lifts the visual of the entire spread.

Love this peanut butter banana cookie spread? Follow ShowerGourmet on Pinterest for more baby shower dessert ideas and recipes you can actually pull off.

Make-Ahead & Storage Tips

Peanut butter banana cookies store well at room temperature in an airtight container for up to 3 days. Layer parchment paper between rows to keep them from sticking together. After day 3, the banana makes them noticeably softer — still fine to eat, but the edges lose their crispness.

For longer storage, freeze baked peanut butter banana cookies in a single layer on a baking sheet, then transfer them to a zip-top bag. They hold for up to 2 months. Thaw at room temperature for 30 minutes before serving. The FDA recommends keeping baked goods at or below 40°F if you’re storing them beyond a few days, especially in warm weather.

You can also freeze the dough. Scoop it onto a parchment-lined tray, freeze solid, then transfer the balls to a bag. Bake from frozen — just add 2–3 minutes to the time. This is the move for showers: prep the dough a week out, bake the morning of, serve them warm. They won’t last long on the table.

Frequently Asked Questions

Can I use natural peanut butter in peanut butter banana cookies?

You can, but the texture changes. Natural peanut butter has more oil separation and less emulsifier, so the dough spreads thinner and the cookies come out flatter. If you prefer natural, refrigerate the dough for 30 minutes before baking to help them hold shape.

How ripe should the bananas be for peanut butter banana cookies?

Very ripe — the peel should have more brown spots than yellow. Those spots mean more sugar has developed, and the banana mashes smoothly. Green or barely yellow bananas won’t break down and the cookies taste starchy instead of sweet.

Can I make peanut butter banana cookies without eggs?

Yes. Replace the egg with 1 tablespoon of ground flaxseed mixed with 3 tablespoons of water. Let it sit for 5 minutes until it thickens into a gel. The texture comes out slightly denser, but the cookies still hold together on the tray.

How do I keep peanut butter banana cookies soft after baking?

Store them in an airtight container with a slice of bread. The bread releases moisture slowly and keeps the cookies soft for days. Don’t skip the parchment layers between rows — the banana makes the surface tacky.

Can I add protein powder to peanut butter banana cookies?

You can stir in up to 2 tablespoons of unflavored or vanilla protein powder without major issues. More than that dries out the dough. Reduce the flour by the same amount you add in protein powder to keep the ratio balanced.

Peanut butter banana cookies don’t ask for much — ripe bananas, a jar of peanut butter, and about 25 minutes. But they give you the kind of warm, chewy, golden-edged tray that makes a baby shower dessert table feel finished. Bake them the morning of, pile them high, and let them do their thing.

Save this recipe to your Pinterest boards so it’s ready next time you’re planning a shower spread.