Cast Iron Skillet Reese's Peanut Butter Cookies Recipe: Crispy Edges and Gooey Peanut Butter Hearts

This cast iron skillet Reese's peanut butter cookie recipe delivers the perfect balance of crispy edges and gooey peanut butter hearts—a texture combination that’s impossible to resist.

The cast iron skillet creates even heat distribution, ensuring golden-brown edges while keeping the centers rich and fudgy, just like your favorite bakery treat.

I developed this recipe after years of experimenting with cast iron desserts, and it’s now my go-to for special occasions or when I crave something indulgent yet impressive.

The secret to these cookies lies in the cast iron itself—its ability to retain heat evenly prevents uneven baking, which is crucial for achieving that signature crispy-yet-soft texture.

You’ll start with a simple dough that combines peanut butter, brown sugar, and eggs, then press it into the skillet for a thick, cake-like base. The magic happens when the peanut butter hearts melt into gooey perfection while the edges crisp up beautifully.

This recipe is foolproof, making it ideal for both beginners and experienced bakers looking to elevate their dessert game.

By the time you pull these cookies from the oven, you’ll have a skillet full of golden, crackly-edged cookies with soft, melt-in-your-mouth centers and pockets of warm peanut butter.

The aroma alone will have everyone gathering around the kitchen, and the first bite delivers a perfect harmony of sweet, salty, and rich flavors. These cookies are perfect for holidays, potlucks, or just treating yourself to something extra special. Let’s get baking!

For added indulgence, consider mixing in chocolate chips or sprinkling a pinch of sea salt over the top before baking. These cookies also reheat beautifully—just pop them back in the oven for a few minutes to restore that crispy edge.

Store leftovers in an airtight container for up to five days, or freeze for longer storage. The cast iron skillet makes cleanup a breeze, too, as the cookies release easily with a spatula. Here’s everything you need to make them!

Ingredients for cast iron skillet reese's peanut butter cookie

Twelve simple ingredients for cookies that taste like a bakery masterpiece.

The peanut butter is non-negotiable—Creamy natural peanut butter (like Jif or Skippy) gives the best texture, but no added sugar keeps it pure. Brown sugar adds moisture and chewiness, so don’t substitute white. Eggs should be at room temperature for a smoother dough—pop them in warm water for 5 minutes if they’re cold. Trader Joe’s sells pre-softened eggs in the refrigerated section if you’re in a rush. The cast iron skillet is your secret weapon—preheat it for 10 minutes on medium-high before baking to ensure even heat distribution. Look for a well-seasoned skillet if yours isn’t yet, or use a little oil to help with release.

No peanut butter cups? Substitute with homemade peanut butter truffles or even mini chocolate cups if you’re desperate. Short on chocolate chips? Chop up a chocolate bar instead—just make sure it’s at least 50% cacao for that rich flavor. The baking soda and salt are tiny but mighty—don’t skip them! The dough will be thick, almost like cookie dough for a giant cookie, so resist the urge to add extra flour. If you’re feeling fancy, swap the vanilla extract for vanilla bean paste for extra depth of flavor. And if you’re worried about the dough sticking, lightly grease the skillet with butter before pressing in the dough.

These cookies reheat like a dream—just pop them back in the oven at 350°F for 2-3 minutes to restore that crispy edge. Store leftovers in an airtight container for up to 5 days, or freeze the dough balls for up to 3 months (bake straight from frozen, adding 2-3 extra minutes). The skillet itself? Clean it while it’s still warm with a paper towel and a little oil—no scrubbing required. These cookies are perfect for holidays or potlucks, and they’ll disappear faster than you can say ‘gooey peanut butter heart.’

Step-by-step instructions for cast iron skillet Reese's peanut butter cookies

Here's how to make these showstopping cookies with crispy edges and gooey Reese's centers every time.

Place the 1 whole cast iron skillet in the oven and preheat to 375°F. This gets your skillet ready for that signature crispy crust. While it heats, in a large mixing bowl, combine the 1.5 cups creamy peanut butter and 1.5 cups packed brown sugar. I like to use a hand mixer here—it creates a light, fluffy texture that's perfect for these cookies.

Add the 2 whole large eggs and 1 tablespoon vanilla extract, mixing until everything is completely smooth. In a separate bowl, whisk together the 1 cup all-purpose flour, 0.5 teaspoon baking soda, and 0.5 teaspoon sea salt. Gradually fold the dry ingredients into the wet mixture until just combined—you should still see some flour streaks. Overmixing develops gluten, which makes cookies tough. The dough will be thick and sticky, almost like cookie dough should be.

Gently fold in the 12 whole Reese's peanut butter cups and 0.5 cup semisweet chocolate chips using a silicone spatula. I like to leave a few whole Reese's on top of each cookie for that classic look and extra peanut butter surprise in every bite. The chocolate chips add a nice contrast to the peanut butter flavor—don't skip this step if you want that perfect balance of textures.

Here's the thing—don't be tempted to add more chips or Reese's. Trust me, the recipe is perfectly balanced as written. The dough will be thick and ready for the skillet. If it seems too much, remember these cookies are meant to be rich and indulgent, not spread out thin.

Remove the hot skillet from the oven and carefully place it on a stovetop burner over medium heat. Add the 0.5 cup unsalted butter and let it melt completely, swirling to coat the bottom evenly. This butter creates that golden crust we're after. When the butter is fully melted and bubbling, carefully drop spoonfuls of dough into the skillet, spacing them about 2 inches apart.

Use a spoon to spread each dollop into a 3-inch round, pressing down gently to create that classic cookie shape. Watch closely as the edges start to set—this usually takes about 2-3 minutes. The butter should bubble and sizzle, creating a beautiful golden crust around each cookie. Don't walk away; you want to catch them at the perfect moment before they overcook.

When the bottoms are golden brown and the edges look set, carefully flip each cookie using a thin spatula. This is where the magic happens—they'll continue cooking on the other side. Return them to the oven for 1-2 minutes to finish cooking through. You're looking for cookies that are firm to the touch but still soft in the center with that gooey Reese's surprise.

I know it seems like a tight window, but trust the visual cues. The edges should be crispy and golden, while the centers should still have a slight give. If they're browning too quickly, reduce the heat slightly. These cookies should be crispy on the outside but still soft and melty on the inside—just like they're supposed to be.

Remove the skillet from heat and let the cookies cool in the pan for 2 minutes. This resting time helps them set slightly so they're easier to handle. Transfer them to a wire rack to cool completely, but here's the best part—these cookies are best served warm. The contrast of the crispy edges and the gooey peanut butter centers is what makes them truly special.

Serve them straight from the skillet while they're still warm for that perfect texture. If you can't resist, break one open to reveal that beautiful Reese's center—it's worth the wait. These cookies are rich and indulgent, so a few will disappear quickly. Store any leftovers in an airtight container at room temperature for up to 3 days, but honestly, they won't last that long.

Dietary considerations for this recipe

Gluten-Free Adaptation

Swap the all-purpose flour for a 1:1 gluten-free baking flour blend like Bob’s Red Mill or King Arthur. Use the same measurement—1 cup—but add ½ teaspoon xanthan gum to mimic gluten’s structure.

The dough will be slightly thicker, so press it firmly into the skillet. These cookies stay crispy on the edges but may be denser in texture. 🌾

Vegan Modifications

Replace the eggs with 2 tablespoons flaxseed meal mixed with 6 tablespoons water (let sit for 5 minutes to thicken). Use vegan butter (like Miyoko’s) instead of dairy butter, and ensure your peanut butter is labeled vegan.

The baking soda and salt remain the same. These cookies will be slightly softer but still deliver that gooey Reese’s surprise. 🥜

Nut-Free Version

For those with nut allergies, omit the peanut butter and Reese’s cups. Replace with 1.5 cups sunflower seed butter (like SunButter) and 12 mini chocolate cups (like Enjoy Life brand).

The flavor shifts to a rich, chocolatey cookie with a seed butter base. The texture remains crispy-edged and soft-centered, just without the peanut butter. 🌱

Lower Sugar Option

Cut the brown sugar to 1 cup and add ½ cup granulated sugar (or ½ cup monk fruit sweetener for a keto-friendly twist). The dough will be slightly less sticky, and the cookies will have a firmer bite.

Balance the flavor with an extra ½ teaspoon vanilla extract or a pinch of cinnamon. The Reese’s cups add sweetness, so no need to overcompensate elsewhere. 🍯

Dairy-Free Adjustments

Use vegan butter (like Earth Balance) for the skillet coating and baking. Ensure your peanut butter is dairy-free (check labels—some brands add milk). The chocolate chips can be dairy-free (like Enjoy Life or Pascha brands). The texture remains the same, but the flavor profile becomes cleaner and more plant-based. 🧈

Allergen-Friendly Tips

Always check labels on peanut butter, chocolate chips, and Reese’s cups for hidden allergens like soy or milk. For a fully allergen-free version, use certified gluten-free, dairy-free, and nut-free ingredients.

Store all adaptations in separate containers to avoid cross-contamination. These cookies prove indulgence doesn’t have to mean dietary restrictions! ✨

Frequently asked questions