Peanut Butter S’mores Sandwich Cookies

📝 Description:

Soft and chewy peanut butter cookies are sandwiched around melty chocolate and gooey marshmallow for a delicious twist on classic s’mores. These handheld treats combine everything you love—sweet, salty, creamy, and crunchy—in one irresistible bite.

🌍 Origin:

This treat is a mash-up of two beloved American classics: peanut butter cookies and campfire s’mores. It adds a rich, nutty dimension to the traditional graham cracker–chocolate–marshmallow combo.

🥄 Ingredients (Makes ~12 sandwich cookies):

For the Peanut Butter Cookies:

Creamy peanut butter – 1 cup (240g)
Unsalted butter – ½ cup (1 stick, 113g), softened
Brown sugar – ¾ cup (150g)
Granulated sugar – ¼ cup (50g)
Egg – 1 large
Vanilla extract – 1 teaspoon
All-purpose flour – 1¼ cups (150g)
Baking soda – ½ teaspoon
Salt – ¼ teaspoon

For the S’mores Filling:

Large marshmallows – 12 (or use marshmallow fluff)
Milk or dark chocolate squares – 12 (Hershey’s-style)
Optional: crushed graham crackers – 2 tablespoons (for added crunch)

🌿 Optional Ingredients:

Marshmallow crème – instead of marshmallows
Nutella or chocolate spread – for added richness
Sea salt – light sprinkle on top
Mini marshmallows – for easier assembly

👩‍🍳 Instructions:

1. Make the Peanut Butter Cookies:

Preheat oven to 350°F (175°C). Line a baking sheet with parchment.
In a large bowl, cream peanut butter, butter, and both sugars until light and fluffy.
Beat in egg and vanilla.
In a separate bowl, whisk flour, baking soda, and salt. Gradually mix into wet ingredients.
Roll into 1½-inch balls and place 2 inches apart on baking sheet. Flatten slightly with a fork or your hand.
Bake 9–11 minutes until edges are set. Let cool completely.

2. Prepare the Filling:

Option A (toasted marshmallows):
Place marshmallows on a parchment-lined sheet. Broil or toast until golden brown (watch closely!).
Option B (quick melt):
Microwave marshmallow on one cookie half for 10–15 seconds until puffy.

3. Assemble Sandwiches:

Place a piece of chocolate on the flat side of one cookie.
Add a warm marshmallow or a dollop of fluff.
Press another cookie on top to sandwich.
Let sit for 2–3 minutes to allow chocolate to melt slightly and hold everything together.

💡 Tips for Success:

Let cookies cool completely before assembling, or fillings may melt too fast.
Use mini marshmallows for easier melting and neater sandwiches.
If using fluff, freeze cookies for 5 minutes before assembling to avoid excess squish.
Store assembled cookies in a container lined with parchment, or wrap individually for gifts.