The Big Sur S'mores Loaf: A Brownie That Went to Finishing School

The Big Sur S'mores Loaf: A Brownie That Went to Finishing School

October 14 is National Dessert Day. We don't know who invented it, and frankly we don't care. Somebody gave us permission to put brownie, toasted marshmallow, and espresso on the same plate in the middle of a Wednesday, and we intend to honor that gift with everything we've got.

Meet the Big Sur S'mores Loaf. A deep, fudgy brownie baked in a loaf pan so the center stays gooey, laced with a reduction of our Organic Cone Peak Espresso, crowned with a cloud of torched marshmallow meringue, and finished with an optional whisper of ultra-fine Cone Peak. Picture a campfire on a bluff above Highway 1. Now picture that campfire went to culinary school and came back slightly insufferable about technique. That's this.

Fair warning: it's rich. Cut it thin. You'll go back for a second slice anyway, and we'll pretend not to notice.

Why Big Sur, and Why Cone Peak

Cone Peak climbs just over 5,000 feet only a few miles from the Pacific, and it's often called one of the steepest coastal rises in the Lower 48. It's also the name on one of our favorite House Espressos and one of our best-selling coffees, which feels right for a mountain that refuses to do anything halfway.

Cone Peak Espresso is our take on Mocha Java, the original coffee blend. We build it on organic beans from Africa and Sumatra, then blend in a little Foglifter for deep body and a smoky, sweet finish. French and medium roast components share the bag, and Rory, our master roaster's notes, read rich chocolate, brown sugar, and herbal delight.

Here's why that matters for dessert. The chocolate note doubles down on the chocolate in the brownie. The brown sugar note echoes the dark brown sugar in the batter, so the coffee tastes like it was born there. The herbal edge is the secret weapon: it keeps the marshmallow from dragging the whole thing into children's-birthday territory. And the French roast side of the blend has the backbone to stand up to dark chocolate without going one-note bitter.

How We Get Coffee Into a Brownie (Without Cheating)

Most coffee desserts get their flavor from a spoonful of instant espresso powder. It works. It's also freeze-dried coffee from a jar, and we roast certified organic beans in small batches on a vintage machine named Big Vinny. You see the problem.

Grinding beans straight into the batter is the obvious next idea, and it's a trap. Even the finest home grind leaves particles several times larger than cocoa powder, and coffee grounds don't dissolve. In a crunchy biscotti nobody notices. In a soft, gooey brownie your tongue finds every single one, and suddenly dessert has the mouthfeel of a beach picnic.

So we reduce. Two fresh shots of Cone Peak go into a small saucepan over low heat and cook down by half, to roughly one ounce of glossy, intensely concentrated coffee. That goes into the batter: all the flavor of real espresso, doubled, with nothing gritty along for the ride.

Then optionally, for the rustically inclined, once the marshmallow is torched, we finish with a tiny dusting of ultra-fine Cone Peak on top. Up there, a little texture is welcome. It tells you what's inside before the first bite and gives the crust one small crunchy moment before the gooey interior takes over.

Why This Recipe Works (The Nerdy Part)

Coffee and chocolate are basically cousins. Both are fermented, roasted seeds, and both are loaded with pyrazines, the compounds behind that toasty, roasted character. Put them together and the coffee mostly melts into the chocolate, making it taste darker and deeper. People rarely say "coffee" after the first bite. They say "wow, that chocolate."

The loaf pan is deliberate. It's deeper and narrower than a square brownie pan, so the edges set while the middle stays fudgy. That depth is where the goo lives.

There's no baking powder in this recipe, on purpose. Leavening makes brownies cakey, and cakey was never the assignment.

The shiny, crackly top comes from technique. Whisking the sugar into warm melted chocolate starts dissolving it, and beating in the eggs one at a time builds a glossy batter that bakes into that thin, paper-like crust. Will the marshmallow cover it? Yes. Will you see it at the edge of every slice? Also yes. Details matter.

The topping is technically a Swiss meringue, the same fluffy stuff that crowns a lemon meringue pie. Heating the egg whites and sugar together before whipping makes it stable, glossy, and safe to eat, and it toasts exactly like a campfire marshmallow.

The Recipe

Makes one 8.5 x 4.5 inch loaf, about 10 to 12 thin slices. We landed on 5-6 legit ones, late night.

Equipment

  • 8.5 x 4.5 inch loaf pan (a 9 x 5 works too; see Shortcuts)

  • Parchment paper

  • Small saucepan

  • Stand mixer or hand mixer

  • Instant-read thermometer (If you don't have a Thermapen just buy one)

  • Kitchen torch, or a broiler and steady nerves

For the Brownie Loaf

  • 10 tbsp (140 g) unsalted butter, cut into pieces (Beurre de Bordier is nice but whatevs)

  • 5 oz (140 g) dark chocolate, 60 to 64% cacao, finely chopped (Guittard, Valrhona, or Ghirardelli bittersweet)

  • 2 oz (one double shot) freshly pulled Organic Cone Peak Espresso, reduced to 1 oz

  • 1 cup (200 g) organic granulated sugar

  • ⅓ cup (70 g) organic or fair trade packed dark brown sugar

  • 1½ tsp pure vanilla extract

  • 3 large eggs, room temperature

  • ½ cup plus 2 tbsp (80 g) organic all-purpose flour

  • ⅓ cup (28 g) Dutch-process cocoa powder

  • ½ tsp fine sea salt

For the Toasted Marshmallow Topping

  • 3 large egg whites, room temperature

  • ¾ cup (150 g) granulated sugar

  • ¼ tsp cream of tartar

  • Pinch of fine sea salt

  • 1 tsp pure vanilla extract

For the Finish

  • ⅛ to ¼ tsp Organic Cone Peak beans, ground as fine as your grinder will go

  • Flaky sea salt

The Method

1.Prep the pan. Heat the oven to 325°F with a rack in the center. Line the loaf pan with parchment, leaving a 2-inch overhang on the long sides for lifting. Grease the exposed short ends.

Perfect Grind.... Perfect Shot... (Mahlkonig & Lelit for the win today)

2. Reduce the espresso. Pull a double shot (2 oz) of Cone Peak. Pour it into your smallest saucepan over low heat and hold it at a bare simmer for 5 to 7 minutes, until it's down to about 1 oz and looks glossy. A shot glass makes a handy measuring check. Keep the heat low. Scorched coffee tastes like burnt toast and will follow you into every bite. Set aside.

3. Melt the butter and chocolate. In a heatproof bowl over barely simmering water, or in the microwave in 20-second bursts, melt the butter and chopped chocolate together, stirring until smooth.

4. Dissolve the sugars. Whisk both sugars into the warm chocolate for about a minute, then let it sit for 2 minutes. Warm fat gets the sugar dissolving, which is your first step toward a glossy toppy.

5. Add the espresso and vanilla. Whisk in the reduced Cone Peak and the vanilla.

6. Beat in the eggs, one at a time. Whisk each egg in vigorously for about 30 seconds before adding the next. The batter will turn thick and glossy and start pulling away from the sides of the bowl. This step builds the texture, so give it some arm.

7. Fold in the dry ingredients. Sift the flour, cocoa, and salt over the batter and fold with a spatula just until no dry streaks remain. Then stop. Overmixing builds gluten, and gluten is how fudgy turns into cake.

8. Bake. Pour into the pan and smooth the top. Bake 50 to 60 minutes, peeking at 35 minutes and tenting loosely with foil if the edges are darkening fast. It's done when the top is set and crackled, the edges pull away from the pan, and a toothpick in the center comes out with thick, moist crumbs. Wet, streaky batter means more time. A slight wobble in the very center is exactly right; it finishes setting as it cools.

9. Cool, for real. Leave it in the pan for 1 hour, lift it out by the parchment, and cool on a rack for at least 1 more hour. Warm brownie melts meringue into a landslide. Two hours total is non-negotiable.

10. Make the meringue. In a spotlessly clean, grease-free heatproof bowl, combine the egg whites, sugar, cream of tartar, and salt. Set it over simmering water without the bowl touching the water. Whisk constantly until it reaches 160°F on an instant-read thermometer and feels completely smooth between your fingers, 4 to 6 minutes.

11. Whip to stiff peaks. Move it to a stand mixer with the whisk (or use a hand mixer) and whip on high for 6 to 8 minutes, until thick, glossy, and stiff, and the bowl feels cool. Add the vanilla in the last 30 seconds.

12. Top it. Set the loaf on a sheet pan or heatproof board. Pile on the meringue and swirl it into dramatic peaks with the back of a spoon. Peaks get the best char, so go big.

13. Torch it. Hold a kitchen torch a few inches away and keep it moving until the meringue is golden with a few nearly black tips. No torch? Slide the sheet pan under a broiler on high, about 6 inches from the element, for 45 to 90 seconds. Stand there and watch. Perfect becomes ruined in about ten seconds.

14. Optional Finish. While the meringue is still warm, dust ⅛ to ¼ tsp of ultra-fine Cone Peak across the top through a small fine-mesh strainer or between your fingertips, then add a few flakes of sea salt. Let it set for 15 minutes.

15. Slice. Use a long, sharp knife dipped in hot water and wiped clean between cuts.

Shortcuts (We Won't Tell)

Store-bought marshmallows. Halve about 20 large marshmallows, pack them cut-side down over the cooled loaf, and torch or broil. You'll get a chewier, denser top instead of a cloud. Still very good.

No espresso machine. Brew a concentrated Cone Peak in a moka pot or AeroPress, measure out 2 ounces, and reduce it the same way. Or swing by any of our shops, order two shots to go, and look mysterious about it.

Only have a 9 x 5 pan. Use it. The loaf will be a little shorter and bake faster, so start checking at 40 minutes.

Two places we'd beg you not to cut corners: the espresso reduction, which is where the flavor lives, and the cooling time, which is the difference between a dessert and a mudslide.

Serving and Storage

Serve it the day you top it, once the meringue has set for about 15 minutes. The next day it's still great. After that, the meringue starts to soften and weep into the brownie, so this is no make-on-Sunday, eat-on-Thursday situation.

The pro move is to split the work. Bake the loaf a day ahead, cool it, wrap it, and leave it at room temperature. On the day, whip the meringue, top, torch, dust, done. Keep the finished loaf out of the fridge; humidity makes meringue weep.

For a full dessert-course moment, warm a slice for 10 seconds, add a small scoop of vanilla ice cream, and pour a fresh shot of Cone Peak over the top. Affogato meets s'more, and the table goes quiet. Or keep it simple with a thin slice next to a Cone Peak cortado, which is exactly what we'll be doing at 3 p.m. on October 14, for the record.

The Bottom Line

Brownie, marshmallow, and espresso have been circling each other for years. We just introduced them properly: a deep fudgy loaf, two shots of Cone Peak reduced with patience, a torched meringue crown, and a dusting of coffee on top so nobody forgets who brought them together.

Happy National Dessert Day. Bake it once and it joins the rotation for good.

Brew boldly,

The Team at Carmel Valley Coffee Roasting Company