These Peanut Butter Cup S’mores are porch-party perfect—fast, fun, and wildly satisfying. We toast marshmallows over glowing charcoal embers for that ideal contrast: crisp, caramelized exterior and a gooey, molten center. Instead of grahams, we sandwich the marshmallow and a peanut butter cup between chocolate chip cookies (or chocolate wafers) so the chocolate softens and the peanut butter oozes with every bite. The brasero setup on a live fire makes it easy to manage gentle, even heat, but a simple fire pit works just as well. Kids can join the toasting with long skewers and a designated “ember zone,” turning dessert into an interactive moment. From lighting the coals to that first sticky, chocolate-smudged grin, you’re only minutes away from a nostalgia-rich treat with a playful twist—perfect for Halloween night or any backyard hangout.
What You’ll Love About This Recipe
- Cookie swap s’mores with a peanut butter cup center.
- Ember-toasted marshmallows: crisp outside, molten inside.
- Three-minute cook time once the coals are ready.
- Kid-friendly assembly with simple, sensible safety cues.
- Works on a brasero, grill, or basic fire pit—your call.
Peanut Butter Cup S’mores (Live-Fire Method)
Tom Jackson
Rated 5.0 stars by 1 users
Category
Dessert
Cuisine
American
Servings
1
Prep Time
15 minutes
Cook Time
3 minutes
Calories
330
Swap grahams for cookies and melt a peanut butter cup into fire-toasted marshmallows. A fast, kid-friendly s’more with big flavor and Halloween vibes.
Ingredients
- 2 chocolate chip cookies (or chocolate wafer cookies)
- 1 large marshmallow
- 1 peanut butter cup (standard size)
-
Directions
Build a small live fire. Light lump charcoal and dump into the brasero. Feed a few small wood splits to create a steady bed of glowing coals; you want heat without big flare-ups.
- Skewer the marshmallow and hold it over the coals, rotating for even color. Aim for a toasted, golden exterior with a soft, melting center. (If you like it charred, let it kiss the flame briefly, then blow it out.)
- While the marshmallow toasts, set one cookie flat-side up. Place the peanut butter cup on top so it starts to soften from ambient heat near the fire.
When the marshmallow is crisped outside and molten inside, slide it off the skewer onto the peanut butter cup. Cap with the second cookie and press gently until the chocolate starts to melt. Wait 10–15 seconds for the molten sugar to cool slightly—then enjoy.
Recipe Note
Recipe FAQ
Why use cookies instead of graham crackers?
Chocolate chip cookies add a second layer of chocolate and a more substantial, crunchy bite than a graham cracker provides. Grahams are thin and honey-sweet — they get the job done but contribute relatively little flavor of their own. A chocolate chip cookie is a flavor participant: its chocolate chips soften slightly from the heat of the marshmallow, the butter in the cookie plays against the peanut butter cup, and the thicker structure holds everything together without crumbling. Chocolate wafer cookies intensify the cocoa even further if you want to lean that direction.
What's the difference between toasting over embers versus open flame?
Embers produce radiant heat — steady, even, and controllable. Held just above glowing coals and rotated slowly, a marshmallow develops a uniformly golden, caramelized crust while the interior melts completely through. Open flame is faster and hotter but uneven — the side facing the flame chars while the opposite side stays pale. A deliberately flame-charred marshmallow (light it, blow it out) has a bitter, smoky exterior that some people love, but it's a different result. For most people, embers are the right choice for both texture and flavor.
Why set the peanut butter cup on the cookie near the fire before the marshmallow is done?
A cold peanut butter cup placed under a hot marshmallow doesn't melt on contact — the chocolate shell is firm enough to resist the heat initially and you end up pressing the s'more together before the filling is ready. Resting it near the fire for 30–60 seconds while the marshmallow toasts softens the chocolate shell and warms the peanut butter filling so that when the hot marshmallow lands on it, everything melts together in one press. The result is a fully integrated s'more rather than a hot marshmallow sitting on top of a cold candy.
How do I involve kids safely at the fire?
Long skewers — at least 18 inches — are the most important safety tool. They keep hands far enough from the heat that even a sudden flare-up isn't dangerous. Establish a designated toasting zone so kids aren't moving around with hot skewers. Flaming marshmallows happen — blow them out immediately rather than waving them; waving spreads the flame. The most important rule is the 10–15 second rest after assembly before the first bite: melted marshmallow and chocolate hold heat longer than they look like they do and can burn the roof of the mouth badly.
Can I make this Indoors?
We rate this a 4 out of 5 for making indoors. Great in the kitchen, better on the fire. A kitchen torch held 2–3 inches from the marshmallow and rotated slowly replicates the ember-toast effect well — it's the closest indoor approximation to live-fire toasting. A broiler on high with the marshmallow on a skewer works too but requires constant attention to avoid over-charring. What you give up is the experience and the subtle campfire character that embers impart.
Recipe Highlights & Insights
The peanut butter cup is the upgrade that makes this worth making instead of a standard s'more. Reese's standard size is the right choice — the ratio of chocolate shell to peanut butter filling is calibrated for a single-bite experience, and the peanut butter melts into the marshmallow in a way that Reese's minis (too little filling) and the oversized cups (too much) don't replicate. The combination of chocolate chip cookie, peanut butter, and toasted marshmallow hits every flavor register — sweet, salty, roasted, nutty — simultaneously.
The brasero setup used here is worth understanding if you're not familiar with it. A brasero is an open, shallow firebox designed to burn wood and charcoal at table height — it puts the embers at arm level rather than ground level, which makes toasting more comfortable and gives better heat control than leaning over a traditional fire pit. Any live-fire setup with a stable ember bed works for this recipe, but the brasero's accessibility is what makes it practical for a group of kids toasting simultaneously.
The 10–15 second rest after assembly before the first bite isn't optional safety theater — it's real. Marshmallow sugar heated to molten temperature retains heat longer than most foods its size because of its high sugar and air content. The outside of the s'more cools rapidly but the interior stays dangerously hot for longer than expected. This is the same principle as letting a filled pastry rest — the crust cools first, the filling stays hot. Let it rest, then eat it.
This recipe works best as a station rather than a batch cook. Set out cookies, unwrapped peanut butter cups, skewers, and a landing board near the fire and let people assemble their own in sequence. The interactive format is a significant part of the appeal — it's a slow-down moment at a party, a reason for people to gather around the fire, and an activity that works for guests of any age. The recipe scales to whatever the crowd size is with zero modification.
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Nutrition
Nutrition
- Nutrition Serving Size
- 1 smore 2.7 oz
- per serving
- Calories
- 330
- Carbs
- 55 grams
- 20%
- Fiber
- 2 grams
- 7%
- Sugar
- 38 grams
- 76%
- Protein
- 5 grams
- 10%
- Fat
- 14 grams
- 18%
- Saturated Fat
- 6 grams
- 30%
- Sodium
- 220 milligrams
- 10%
- Cholesterol
- 5 milligrams
- 2%