70% Dark Chocolate Bar – From Bean to Bar
70% Dark Chocolate Bar – From Bean to Bar is a medium French recipe that serves 4. 560 calories per serving. Recipe by Ludo's Workshops on YouTube.
Prep: 25 min | Cook: 2 hrs 5 min | Total: 2 hrs 50 min
Cost: $5.20 total, $1.30 per serving
Ingredients
- 150 g Cocoa beans (origin Peru) (Whole, unroasted, organic and fair‑trade beans)
- 10 g Cocoa butter (Pure, non‑hydrogenated cocoa butter)
- 70 g Granulated white sugar (Fine sugar for quick dissolution)
Instructions
Weigh the cocoa beans
Weigh 150 g of whole cocoa beans and place them near the roaster. Clean your work surface.
Time: PT5M
Roasting the beans
Pour the beans into the roaster, set the temperature to 130 °C and roast for 20 minutes. Stir lightly halfway for even roasting.
Time: PT20M
Temperature: 130°C
Cooling the roasted beans
Spread the roasted beans on the cooling tray and let them rest for 10 minutes until they are warm to the touch.
Time: PT10M
Winnowing (shell removal)
Transfer the cooled beans to the Tara machine. Activate the blower: the light shells are expelled, the nibs remain in the container.
Time: PT5M
Grinding the nibs (refining)
Pour the nibs into the grinder. Run the grinding cycle until you obtain a smooth paste (cocoa mass). This process takes about 15 minutes.
Time: PT15M
Incorporating cocoa butter and sugar
Add 10 g of cocoa butter then 70 g of sugar to the cocoa mass. Mix at medium speed until the sugar is fully dissolved.
Time: PT5M
Conching (final refining)
Transfer the mixture to the tempering machine (conching mode). Run at 45 °C for 30 minutes to develop texture and aromas.
Time: PT30M
Temperature: 45°C
Tempering the chocolate
Heat the chocolate to 45 °C, then gradually lower to 31‑29 °C following the machine’s profile. Hold this temperature for 20 minutes to properly crystallize the cocoa butter.
Time: PT20M
Temperature: 45°C
Molding and de‑bubbling
Pour the tempered chocolate into 75 g molds each. Activate the vibrating table for 5 minutes to eliminate air bubbles.
Time: PT5M
Final cooling
Place the molds in the refrigerator for 30 minutes so the chocolate solidifies completely.
Time: PT30M
Unmolding and tasting
Remove the bars from the molds, gently break to check the snap. Enjoy at room temperature to appreciate the banana and red‑fruit aromas.
Time: PT5M
Nutrition Facts
- Calories
- 560
- Protein
- 7 g
- Carbohydrates
- 45 g
- Fat
- 38 g
- Fiber
- 10 g
Dietary info: vegetarian, vegan, gluten‑free, high-fiber
Allergens: cocoa
Ingredient Substitutions
- Instead of Cocoa beans (origin Peru): Cocoa beans from Madagascar, Cocoa beans from São Tomé
- Instead of Cocoa butter: More cocoa paste (increases cocoa percentage)
- Instead of Granulated white sugar: Whole cane sugar, Erythritol (for sugar‑free version)
Equipment Needed
- Cocoa roaster
- Cooling tray (sieve)
- Winnowing machine (Tara)
- Grinder / Refiner (conche)
- Chocolate tempering machine
- Polycarbonate molds (Bordeaux topography)
- Vibrating table (de‑bubbling) (optional)
- Refrigerator or cold room
- Digital kitchen scale
- Silicone spatula
- Cooking thermometer
- Knife or spatula for unmolding
Critical Steps — Do Not Skip
- Roasting the beans
- Winnowing (shell removal)
- Tempering the chocolate
Chef Tips from the Video
- Choose cocoa beans with fruity notes (banana, red fruits) for a unique flavor profile.
- Roasting time strongly influences taste: hotter = roasted notes, milder = fruity notes.
- Let the chocolate rest 24 h after tempering so the flavors fully stabilize.
Troubleshooting
Chocolate is not shiny after tempering
Re‑temper by heating to 45 °C then quickly lowering to 28 °C before remixing.
Visible air bubbles in the bars
Use the vibrating table longer or tap the molds on the work surface before cooling.
Chocolate is too grainy
Refine the grinding further or extend conching to reduce particle size.
Storage
Refrigerator: Store in an airtight container, up to 2 weeks maximum.
Freezer: Can be frozen up to 6 months, well wrapped to prevent moisture.
Room temperature: In a cool, dark place away from humidity, up to 1 week.
Make-Ahead Tips
- Roasted beans can be stored for 1 month in an airtight jar before winnowing.
- Tempered chocolate can be prepared ahead and kept in the refrigerator before molding.
Last updated: August 21, 2026





