
The mix of decadent chocolate with smooth peanut butter makes these treats totally mouthwatering. These tiny swirled brownie bites give you the perfect combo of fudgy texture plus that beloved peanut butter pattern everyone goes crazy for. They may be small but they pack a serious flavor punch.
I came up with this while we were stuck at home during a blizzard and needed something sweet badly. Now my family asks for them at every get-together.
Ingredients
- Semisweet chocolate: Go for the good stuff for richer flavor. Better chocolate always makes better cookies.
- Unsalted butter: Make sure it's at room temp for smooth mixing. This fat gives you that soft brownie feel.
- Granulated sugar: Brings the sweetness and helps make those cracked tops. You can use a bit less if you want them less sweet.
- Egg: Keeps everything together and builds structure. Room temperature works best for mixing.
- All purpose flour: Forms the backbone that holds everything in place. Make sure you measure it right for best results.
- Baking powder: Adds just enough rise without making them too fluffy. Check if it's still good before using.
- Salt: Brings out all the tastes, especially the chocolate. Just a tiny bit makes a huge difference.
- Smooth peanut butter: The regular brands like Jif or Skippy work better for swirls. Natural kinds can sometimes split during baking.
Step-by-Step Instructions
- First melt your chocolate:
- Combine chocolate and butter in a microwave-safe dish and heat for 30 seconds at a time, mixing between until it's all smooth. Don't heat too much or the chocolate will clump up. You want it shiny with zero lumps.
- Mix up your foundation:
- Stir sugar into your warm chocolate mix until it's all combined. The heat helps break down those sugar bits for a smoother result. Let it cool a bit before adding egg so you don't cook it.
- Put in your binder:
- Drop in the egg and stir hard until it's fully mixed in. Your batter will get thicker and shinier. This part helps your cookies keep their shape later.
- Mix in the dry stuff:
- Softly fold in flour, baking powder, and salt just until mixed. Too much stirring makes tough cookies. Stop when you can't see any more flour streaks.
- Shape your treats:
- Drop spoonfuls of dough onto a paper-lined baking sheet with about 2 inches between them. They'll spread a bit while baking.
- Make those pretty swirls:
- Drop a tiny bit of peanut butter in the middle of each cookie. Use a toothpick or knife tip to swirl it through both parts. Don't mix too much or you'll lose the cool pattern.
- Bake them just right:
- Put in a 350°F oven and bake about 8-10 minutes until edges look done but middles still seem a bit underbaked. This keeps them nice and fudgy after cooling.
- Let them rest:
- Leave cookies on the hot pan for 5 minutes before moving to a cooling rack. The leftover heat from the pan will finish cooking them.

My little girl Clara calls these "happy cookies" because they always cheer everyone up. Last year at Christmas, we made huge batches to send to family who couldn't visit. I got so many thank you calls for these little joy bites that all the extra baking felt totally worth it.
Keep Them Fresh
These treats stay perfectly chewy for about 5 days in a sealed container at room temp. Put some baking paper between layers so they don't stick together. If you want to keep them longer, you can freeze baked cookies for up to 3 months. You can even freeze the raw dough balls without the peanut butter part, then thaw them a bit before adding the swirl and baking. That way you can have warm cookies whenever you want them.

Tasty Twists
The original peanut butter swirl is awesome, but trying different nut butters can be fun too. Almond butter gives a lighter nutty taste, while cookie butter adds some warm spice notes. Throwing in white chocolate chips creates sweet pops of flavor. For a festive touch, sprinkle smashed candy canes on top right after baking. My favorite change is adding a bit of flaky salt on top which makes both the chocolate and peanut butter taste even better.
Ways To Enjoy
Make these cookies extra special by putting ice cream between two of them for mini ice cream sandwiches. At dinner parties, put a few cookies on each plate with some whipped cream and chocolate sauce. They go really well with coffee or milk for a nice afternoon snack. In summer, breaking these cookies up over vanilla ice cream makes an amazing topping.
Fixing Problems
If your cookies flatten out too much, your butter was probably too soft. Stick the dough in the fridge for 20 minutes before baking. If they seem dry, you likely left them in the oven too long. Remember they'll keep cooking on the hot pan after you take them out. For the best-looking swirl, make sure your peanut butter isn't cold so it's easy to work with when using the toothpick.
Frequently Asked Questions
- → What’s the secret to soft cookies?
To keep the cookies soft, take them out of the oven when the centers look slightly underdone. They’ll firm up as they cool.
- → Can I swap peanut butter for something else?
Of course! Almond butter, hazelnut spread, or cookie butter work great if you want to try a new flavor.
- → What’s the best way to store them?
Keep them in a sealed container at room temperature for up to 5 days, or pop them in the freezer if you want to save them longer.
- → Is dark chocolate a good substitute?
Definitely! Swap in melted dark chocolate for a richer, deeper chocolate flavor.
- → Why is my peanut butter not swirling nicely?
Try warming up the peanut butter a little. It’ll make it smoother and easier to blend into the dough.
- → What extra toppings would go well?
Top them off with chopped nuts, chocolate chunks, or a sprinkle of sea salt for extra crunch and flavor!