S’more Blondies
S’more Blondies
Yields: 16 bars (9×13″ pan)
Bake time: 25–30 minutes
Rest time: 2 hours (for clean slices)
Equipment
- 9×13″ metal baking pan
- Digital scale (grams)
- Oven thermometer
- Kitchen torch
Ingredients
1. Dry Mix
- 200 g all‑purpose flour
- 20 g cornstarch
- 3 g (½ tsp) baking powder
- 4 g (¾ tsp) fine sea salt
2. Sugars & Fat
- 170 g unsalted butter, melted & cooled
- 140 g brown sugar (light or muscovado)
- 60 g granulated sugar (super‑fine)
- 30 g invert sugar or honey
3. Eggs & Flavor
- 2 large eggs (≈100 g), room temperature
- 5 mL (1 tsp) pure vanilla extract
4. Mix‑Ins & Toppings
- 100 g graham crackers, toasted & crushed
- 120 g bittersweet chocolate chunks (10–12 mm)
- 100 g marshmallow crème
- 10 g coarse sanding sugar
Method
-
Prep
- Preheat oven to 175 °C (350 °F). Position rack in center.
- Line 9×13″ pan with parchment, leaving 2″ overhang on long sides; grease lightly.
- Toast graham crackers at 160 °C for 5 minutes; crush coarsely.
-
Combine Dry
- Whisk flour, cornstarch, baking powder, and salt in a bowl; set aside.
-
Blend Sugars & Fat
- In a mixing bowl, whisk melted butter, brown sugar, granulated sugar, and invert sugar until smooth and glossy.
-
Add Eggs & Vanilla
- Whisk in eggs one at a time until combined.
- Stir in vanilla extract.
-
Fold in Dry Mix
- Add dry mix in three parts, folding gently with a spatula until no streaks remain.
-
Incorporate Mix‑Ins
- Reserve 40 g chocolate chunks and 20 g graham crumbs for topping.
- Fold remaining chocolate and graham into batter.
-
Assemble in Pan
- Spread batter evenly in prepared pan.
- Dollop marshmallow crème in 6–8 spots.
- Swirl lightly with a skewer.
- Sprinkle reserved chocolate, graham, and sanding sugar along edges.
-
Bake
- Bake 25–30 minutes, rotating halfway.
- Edges should be set; center should jiggle slightly.
-
Torch Finish (Optional)
- Immediately after baking, toast marshmallow swirls with a kitchen torch until amber.
-
Cool & Slice
- Cool on a wire rack for 1 hour, then chill in pan for 1 hour.
- Lift out with parchment and cut into 16 bars.
Storage
- Store:
- Room temperature, airtight, up to 3 days
- Refrigerated up to 1 week (edges soften)
- Frozen (individually wrapped) up to 1 month