Ingredients
Method
Preheat the Oven
- Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper.
Melt the Chocolate & Butter
- In a heatproof bowl, add chocolate chips and butter.
- Microwave in 30-second intervals (about 1 min 30 sec total), stirring between each round, until completely melted and smooth.
- Set aside to cool slightly.
Prepare the Wet Batter
- In a separate mixing bowl, whisk the eggs and brown sugar for 2–3 minutes until the sugar is mostly dissolved and the mixture is fluffy and pale.
- Add granulated sugar and whisk for another 1–2 minutes.
- Mix in the vanilla bean paste, then pour in the melted chocolate-butter mixture. Whisk until fully combined.
Mix the Dry Ingredients
- In another bowl, whisk together:- Flour- Baking powder- Cocoa powder- Salt- Instant coffee (if using)
- Add the dry ingredients to the wet batter and mix until just combined.
- The batter will be thick and scoopable. Do not overmix.
Assemble the Cookies
- On the lined baking sheet:
- - Place 8 graham cracker squares, spaced at least 3 inches apart- Top each cracker with 1 large marshmallow- Using an ice cream scoop or large spoon, scoop the brownie batter directly over each marshmallow, covering it fully
- Sprinkle a few extra chocolate chips on top of each cookie if desired.
- Important: Do not bake more than 4 cookies per sheet, as they spread. Bake in two batches.
Bake
- Bake for 12–14 minutes, or until:- Edges are crispy and set- Centers are gooey and slightly puffed
- Allow to cool on the baking sheet for 30–40 minutes. This rest time helps the structure set while keeping the inside soft and molten.
Notes
Tips for the Best Results
- Use room temp eggs: This ensures better emulsification and a fluffier batter.
- Don't skip the cool time: Letting cookies cool after baking helps them set properly—otherwise, they may fall apart.
- Use instant coffee: It's optional but adds incredible depth to the chocolate flavor.
- Want extra marshmallow goo? Add a second marshmallow on top 2 minutes before the end of baking.
- Room Temp: Store cooled cookies in an airtight container for up to 3 days.
- Reheat: Warm in the microwave for 8–10 seconds for an ooey-gooey texture.
- Freeze: Freeze unbaked, assembled cookies on a tray, then transfer to a freezer-safe bag. Bake from frozen, adding 1–2 extra minutes to the baking time.
