Chocolate Butter Baguette Sandwich

Inspired by the classic French snack of baguette with butter and chocolate, this Chocolate Butter Baguette Sandwich is simple but so delicious. A crisp homemade baguette filled with salted butter and rich chocolate is all you need.

All About This Chocolate Butter Baguette Sandwich

The first time I had this was at a small neighbourhood bakery in Japan. Nothing fancy at all, just a baguette split open with butter and chocolate inside. I remember thinking it was almost ridiculous how good it was. The bread was crisp, the butter was cold, and the chocolate was just starting to soften from the warmth of the bakery.

When I told my mom about it later, she immediately said, “Oh, the French snack!” She had this daily when she worked as a tour guide in France, where baguette with butter and chocolate is a really normal afternoon snack, especially for kids. It falls under le goûter—something you eat between lunch and dinner.

It’s only three simple ingredients, and that’s exactly what I love about this sandwich. It’s not trying to be fancy or complicated—just crisp bread, soft crumb, creamy butter, and rich chocolate. A traditional French baguette can be quite chewy (which I also love), but for this recipe I’m using a semi-hard baguette that’s smaller in size, with a thinner crust and softer interior. In Japan, this style is called semi-hard France or sometimes coupe, inspired by French baguettes but adapted for Japanese tastes.

The baguette itself is no-knead, which makes it very low effort. You can bake it the same day or let it ferment overnight if that works better for you. Either way, it’s the kind of bread you’ll probably end up making again—for this sandwich and plenty of others too.

Ingredients and Substitutions

All you need is 3 ingredients for this chocolate butter sandwich!

• Baguette: Traditionally in France, crusty baguettes are used. In Japan, you’ll find French-style breads in a few forms: hard, semi-hard, or soft baguettes, and coupe (クッペ), which also uses baguette dough but is shaped smaller (about 15–18 cm) with a single slit down the center, as the name suggests. I’ve provided a semi-hard crust coupe recipe below, but feel free to use your favorite recipe or store-bought bread.
• Salted Butter: Preferably French butter but any butter you love the flavour of.
• Chocolate: Dark, semi sweet or milk chocolate. You can even use cocoa powder!

Optional variations

• Add a thin layer of peanut butter, almond butter, or pistachio cream
• Layer in sliced strawberries or banana

How to Make Chocolate Butter Baguette Sandwich

The sandwich itself is very straightforward. The only “work” here is the bread, and even that is intentionally easy.

Semi-Hard Baguette (Coupe)

1. Mix the dough (1-2): In a large bowl, combine all ingredients until a shaggy dough forms and no dry flour remains. Cover and rest.
2. Strengthen the dough (3-7): Perform one set of stretch and folds, then do slap and folds until the dough feels smoother and slightly tight (about 30 seconds). Cover and rest, then repeat once more.
3. Bulk fermentation (8):
   • Same-day: Let dough rise at room temperature until puffy and doubled.
   • Overnight: Refrigerate for 12–18 hours. Remove 30–45 minutes before shaping.
4. Divide & pre-shape (9-10): Lightly flour your work surface and gently flip the dough out. Divide into 5 equal pieces. Shape each piece into a rough ball and bench rest.
5. Shape the baguette (11-14): Flatten each piece gently, roll the top edge downward tightly to form a baguette, and pinch the seam closed. Taper the ends if desired. Place seam-side down on parchment paper.
6. Final proof & preheat oven (15) : Cover and let rise at room temperature, until puffy and almost doubled. The dough should spring back slowly when poked. Preheat oven with a baking pan inside.
7. Score & bake (16): Remove cover, lightly let it dry and dust with flour. Score each baguette at a 45-degree angle. Bake with steam until deeply golden and crisp.

Assemble the Chocolate Butter Sandwich

1. Slice the baguette on a slight angle, without cutting all the way through.
2. (17-18) Place thick pieces of salted butter on the bottom half and l ayer chocolate on top.

VIDEO: Watch How to Make It

How to Store and Reheat Leftovers

• Baguettes: Best eaten the same day. If needed, store at room temperature in a air tight container or bag for up to 2 days.
  • To refresh, spray lightly with water and bake or toast at 375°F (190°C) for 5–7 minutes until crisp.
• Assembled sandwiches: These are best eaten fresh. Once assembled, the butter and chocolate soften quickly.
• Freezing: Freezing: Once fully cooled, freeze baked baguettes in a freezer safe bag.
  • To reheat, quickly run them under water, then place directly in a 400°F (200°C) oven or toaster oven for 8–10 minutes until hot and crisp.

Recipe FAQ

More Baguette Recipes

If you love simple baguette-based recipes, you might also enjoy:

• Milk France (Baguette with sweet milk butter)
• Mentai France (Mentaiko baguette)
• Chocolate Baguette

Enjoy! If you make this Chocolate Butter Baguette Sandwich recipe, I’d love to hear what you think! Leave a comment and rating below, and if you share it on social media, tag me on Instagram @Okonomikitchen. I can’t wait to see your creations!

Chocolate Butter Baguette Sandwich

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5 from 1 review

• Author: Lisa Kitahara
• Total Time: 6 minutes
• Yield: 6 servings
• Diet: Vegetarian

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Description

Inspired by the classic French snack of baguette with butter and chocolate, this Chocolate Butter Baguette Sandwich is simple but so delicious. A crisp homemade baguette filled with salted butter and rich chocolate is all you need.

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Ingredients

Units USM

Semi-hard Baguette (Coupe)

• 240 g all-purpose flour (French T55 or T65 flour)
• 168–175 ml water
• 5 g honey or sugar
• 5 g salt
• 5 g butter
• 0.7 g malt powder, optional
• 1 g instant yeast (overnight fermentation)
  • 1.5 g instant yeast (same-day bake)

Chocolate Butter Sandwich (per sandwich)

• 1 serving baguette or coupe (about ~15–18 cm)
• 2 tbsp (28 g) salted butter
• 1 oz (28 g) dark chocolate
• flaky salt

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Instructions

1. Mix dough: In a large bowl, combine all ingredients. Mix until a shaggy dough forms and no dry flour remains. Cover and rest for 20-40 minutes.
2. Strengthen the Dough: Perform one set of stretch and folds, then continue with slap and folds until the dough feels smoother and slightly tight (about 1 minute). Cover and rest for 20-40 minutes, then repeat once more.
   • REST TIMES BASED ON ENVIRONMENT TEMPERATURE
     • Cool room (20–21°C / 68–70°F): rest 35–40 minutes
     • Normal room (22–24°C / 72–75°F): rest 30 minutes
     • Warm room (25–28°C / 77–82°F): rest 20–25 minutes
3. Bulk Fermentation: 
   1. Same day: At room temperature until puffy and doubled in volume.
      • Cool room (20–21°C / 68–70°F): rest 75-90 minutes
      • Normal room (22–24°C / 72–75°F): rest 60-70 minutes
      • Warm room (25–28°C / 77–82°F): rest 35-40 minutes
   2. Overnight: In the refrigerator (4°C / 39°F) for 12–18 hours. The dough should show visible bubbles and increased volume. Remove from the fridge 30–45 minutes before shaping.
4. Divide & Pre-Shape: Lightly dust the surface and dough with flour. Flip the dough out gently. Divide into 6 equal portions. Gently round each piece into a ball, being careful not to press out too much air. Place rough side down. Cover and rest for 20 minutes.
   • You can also opt to divide the dough into 2 and shape the dough into a traditional french baguette. 
5. Shape: Flatten each piece gently. Shape into a baguette by rolling the top edge downward tightly, sealing as you go. Pinch the seam firmly closed using the base of your palm or your fingers. Lightly roll the ends to taper if desired or keep as rods. Place seam side down on parchment paper.
6. Final Proof: Cover and proof at room temperature for 45–75 minutes, or until puffy and nearly doubled. The dough should slowly spring back when poked, leaving a faint indentation.
   • Cool room (20–21°C / 68–70°F): rest 70-80 minutes
   • Normal room (22–24°C / 72–75°F): rest 55-60 minutes
   • Warm room (25–28°C / 77–82°F): rest 45-55 minutes
7. Preheat: About 20 minutes before baking, preheat oven to 240°C / 465°F with a heavy baking tray or steel inside.
8. Score & Bake: Uncover the dough and let the surface dry slightly. Lightly dust with flour. Score each baguette at a 45-degree angle in one swift motion.
9. Bake: Slide the parchment onto the hot tray, add steam immediately, and close the oven door. Bake with steam for 4 minutes Then remove steam and bake 8–10 minutes, until deeply golden and crisp. Transfer onto a wire rack to cool slightly. 

How to Bake with Steam (No Steam Oven)

Option 1: Ice Cube Method (Easy)

1. Place a preheated empty metal tray on the oven floor
2. Add 3–4 ice cubes when loading the bread

Option 2: Boiling Water Method

1. Pour ~1/2 cup boiling water into a preheated cast iron skillet or heavy bottomed tray at the bottom of the oven. 

Chocolate Butter Sandwich (per sandwich)

1. If the baguette is cold or not fresh, spray with water and toast until warm and crispy. 
2. Slice the baguette on a slight angle, not slicing all the way through.
3. Place thick pieces of butter on the bottom half and then layer with chocolate. Top with a very small pinch of salt. Close the sandwich. Serve and enjoy!

• Prep Time: 1 minute
• Cook Time: 5 minutes
• Category: Snack
• Method: Baking
• Cuisine: French

Nutrition

• Serving Size: 1 serving
• Calories: 430
• Sugar: 10 g
• Sodium: 420 mg
• Fat: 28 g
• Saturated Fat: 16 g
• Unsaturated Fat: 11 g
• Trans Fat: 0.5 g
• Carbohydrates: 40 g
• Fiber: 4 g
• Protein: 8 g
• Cholesterol: 60 mg