
These scrumptious peanut butter chocolate half moon cookies showcase the greatest flavor combination in the dessert world: peanut butter and chocolate. Use this simple homemade peanut butter cookie recipe and dip halfway into a rich and fudge-like chocolate coating. The cookies are sweet, a little salty, chewy and soft-baked with slightly crisp edges.
The recipe is slightly adapted from King Arthur Baking Company The Essential Cookie Companion cookbook, a must-have book in any cookie lover’s kitchen!
If you’re a baker, surely you’re familiar with King Arthur Baking Company. I’ve used their signature flour exclusively in my kitchen for ages—and I’m not being compensated for this post or to say this—I’m truly a huge fan and follow their blog closely. Their products are high quality, and their baking inspiration is aplenty.
King Arthur Baking Company The Essential Cookie Companion
They recently published a newly revised and updated cookbook called The Essential Cookie Companion. I’ve had the original version of this giant book for years and this newly revised version provides a fresh spin with over 400 cookie recipes that are approachable for beginners and experts alike. Yes… 400! I was even lucky enough to author a blurb for this beauty:
It’s just a really great cookbook to have in your collection because it covers a vast range of cookie recipes including entire chapters on sugar cookies, oatmeal cookies, biscotti, shortbread, peanut butter cookies, and brownies plus chapters for bar cookies, drop cookies, roll-out cookies, shaped cookies, no-bake cookies, and more.. All of the recipes include weight + volume ingredient measurements. I especially love the Create-a-Cookies on page 365 and used Peanut Chocolate Half Moons on page 68 for today’s recipe.
Today’s new cookie recipe is adapted from the cookbook. The process and ingredients are exactly the same only I chill the cookie dough for 1 hour to prevent over-spreading and added more chocolate to the topping.
Tell Me About These Peanut Butter Chocolate Half Moon Cookies
- Flavor: Enjoy peanut butter, peanuts, and chocolate in these sweet and slightly salty brown sugared cookies. The recipe says you can use add-ins such as peanut butter chips, butterscotch morsels, chocolate chips, or a combination. I actually opted for dry-roasted peanuts to really amp up the peanut flavor like I do in my peanut butter snickerdoodles. They also provided a little crunch to the finished cookie.
- Texture: If you avoid over-baking, the peanut butter chocolate half moons are soft and chewy with slightly crisp edges. The chocolate coating, made from chocolate, butter, and a little corn syrup, is rich and fudge-like. I love that the chocolate isn’t just melted chocolate; it’s a soft fudge icing and eventually sets.
- Ease: This is an easy 1 bowl cookie dough without any fussy steps. Shaping the cookie dough is as simple as dropping it on a lined baking sheet by the tablespoonful. Do not roll the dough in your hands because I tried that and the cookies over-spread. Coating half of the cookies in chocolate requires you to dip them. When it comes to cookie decorating, that’s certainly easy!
- Time: The recipe in the book does not require you to chill the cookie dough, but I found a 1 hour chill in the refrigerator helpful for the cookies to hold shape. I use this quick chill time when making peanut butter chocolate chip cookies, too. The rest of the cookie recipe moves very quickly. Bake the cookies at 375°F (191°C), a slightly higher temperature than some cookie recipes to help set the shape quickly.
Quick Overview: How to Make Peanut Butter Chocolate Half Moons
The cookie dough comes together in just 1 mixing bowl. You’ll cream the butter and brown sugar with salt, baking soda, and vanilla extract. I found it interesting to cream the butter and brown sugar with these other ingredients, but understand that this is to evenly distribute those flavors and leavening in this 1-bowl dough. After that, add the egg and peanut butter one at a time and finally, beat in the flour and your add-in. Expect a super soft and creamy dough. Cover and chill for 1 hour before baking the cookies.
Chocolate Icing
You need pure baking chocolate or high-quality chocolate chips, softened butter, and a little corn syrup. The butter and corn syrup give the icing flexibility so it sets into a soft and thick fudgy consistency vs a hard chocolate coating. It’s wonderfully rich and 1 batch of these peanut chocolate half moons didn’t even last a day with a crew of taste testers.
- They’re almost like a frosted version of peanut butter chocolate swirl cookies. These peanut butter chocolate cookies also deserve a shout out for all the peanut butter + chocolate lovers out there. So many cookies, so little time!
I had some extra peanuts nearby so I chopped and sprinkled them on top of the chocolate while it was still wet. That’s completely optional but makes a pretty finishing touch. You could also add flaky sea salt (so good here!).
I hope you enjoy these beautiful peanut butter chocolate half moons and if you have a moment, check out The Essential Cookie Companion!

Peanut Butter Chocolate Half Moons Recipe
Ingredients You’ll Need
Instructions
- In a large mixing bowl using a handheld or stand mixer fitted with a paddle attachment, cream together the butter, brown sugar, salt, vanilla, and baking soda on medium-high speed. Scrape down the sides and up the bottom of the bowl and beat again as needed to combine. Add the egg and beat until light and fluffy. Add the peanut butter, beating until well blended. Scrape down the sides and up the bottom of the bowl and beat again as needed to combine. Beat in the flour and peanuts/chips on low speed until the dough is cohesive. Dough will be soft and creamy.
- Cover cookie dough and chill in the refrigerator for 1 hour and up to 3 days before baking. If chilling for longer than 2 hours, allow the dough to sit at room temperature for at least 20-30 minutes before baking.
- Towards the end of chill time, preheat oven to 375°F (191°C). Line large baking sheets with parchment paper or silicone baking mats. Set aside.
- Drop the dough by the Tablespoonful onto the prepared baking sheets. Bake the cookies for 9-10 minutes or until very lightly browned around the edges. Cookies will appear very soft, but will become chewy and slightly crispy as they cool. Remove from the oven and allow cookies to cool on the baking sheet for 5 minutes before transferring to a wire rack to cool completely.
- In a double boiler, melt the chocolate and butter together stirring constantly over low heat. OR microwave in a medium heat-proof bowl in 20 second increments, stirring after each until completely melted. Stirring is essential as the butter/chocolate may separate otherwise. Once smooth, remove from heat and stir in the corn syrup. Dip half of each cooled cookie into the chocolate (to make a half-moon effect) and, if desired, lightly sprinkle crushed peanuts or flaky sea salt on the chocolate. Return the cookies to the cooling rack to set, about 1-2 hours. Feel free to place cookies in the refrigerator to speed up the setting time.
- Dipped cookies stay fresh covered at room temperature for up to 2 days or in the refrigerator for up to 1 week.