S’mores Brownies with Marshmallow (Fudgy & Gooey)

If you want a dessert that feels a little extra but is still easy to make, these s’mores brownies are perfect. You get: * a buttery biscuit base * rich chocolate brownie * gooey marshmallow swirl It’s soft, fudgy, slightly crispy at the bottom — and very hard to stop eating.

FOOD AND RECIPES

Eleni K.

5/5/20261 min read

Ingredients

Biscuit Base

160 g digestive biscuits (or 11 full graham crackers)
50 g sugar
85 g unsalted butter, melted

Brownie Layer

400 g sugar
100 g cocoa powder
½ tsp baking soda
¼ tsp salt
150 ml vegetable oil
110 ml hot espresso / coffee (or water)
2 eggs
5 ml vanilla extract (1 tsp)
180 g flour

Topping

1 can marshmallow fluff (≈ 200–215 g)

Instructions

Preheat oven to 180°C and line a 23 x 33 cm (9x13 inch) pan with baking paper or foil.

Step 1: Make the Base

Crush the digestive biscuits into fine crumbs (using a blender or by hand).
Mix with the sugar.
Add melted butter and mix until combined.
Press the mixture firmly into the bottom of the pan.
Bake for 8 minutes, then remove from the oven.

Step 2: Make the Brownie Batter

In a bowl, mix:
- sugar
- cocoa powder
- baking soda
- salt
Add:
- vegetable oil
- hot coffee (or water)

Mix until smooth.

Add eggs and vanilla, and mix well.
Add flour and gently mix until just combined (don’t overmix).

Step 3: Assemble

Pour the brownie batter over the baked crust.
Add spoonfuls of marshmallow fluff on top.
Use a knife or spatula to lightly swirl it into the batter (don’t overmix — you want that marble effect).

Step 4: Bake

Bake at 180°C for 35–40 minutes, until a toothpick comes out with a few moist crumbs.

Step 5: Cool (Important)

Let the brownies cool completely in the pan.
Then place in the fridge for 1–2 hours to help the base set properly.

Texture & Tips

The base: slightly crunchy, buttery
The brownie: rich and fudgy
The top: soft, gooey marshmallow

For best results:

Don’t skip chilling — it makes slicing much easier
Don’t overbake if you want a fudgy texture
Use coffee instead of water to enhance the chocolate flavor (you won’t taste the coffee)

Storage

Store in an airtight container
Keeps for 2–3 days at room temp or longer in the fridge

Final Thought

These are not everyday brownies — they’re the kind you make when you want something fun, indulgent, and a little nostalgic.

Messy, gooey, and very worth it.

Very Almost Fancy 🍫✨