Casting Chocolate Bars
Working with chocolate is a matter of discipline rather than speed. Once you have a clean, tempered bar, it should feel dry to the touch and sound like a sharp click when broken.
Control the moisture and the heat
Even a single drop of water will cause your chocolate to seize and turn into a grainy, unworkable paste. Keep your workspace completely dry.
- Digital instant-read thermometer
- Silicone or polycarbonate chocolate molds
- Double boiler or a metal bowl over a pot of simmering water
- Offset spatula
- Heat-resistant rubber spatula
What goes in.
- 1 lbHigh-quality dark chocolate (couverture), chopped into small, even pieces
Maintaining Crystal Stability
You are forcing the cocoa butter into a specific crystalline form by heating it to 115°F, cooling it to 82°F while agitating, and reheating it slightly to 88-90°F. This creates the snap and shine.
The method.
Melt the chocolate
Place two-thirds of your chocolate in the bowl over simmering water. Do not let the steam touch the chocolate. Heat until it reaches 115°F.
Seed and cool
Remove from heat. Add the remaining unmelted chocolate. Stir constantly until the temperature drops to 82°F. The agitation encourages the stable crystals to form.
Bring to working temperature
Return the bowl to the heat for only a few seconds, just until the chocolate reaches 88°F to 90°F. It should be fluid and smooth.
Cast the bars
Pour the chocolate into your molds. Tap the molds firmly against the counter three or four times to release air bubbles that have gathered at the bottom.
Set
Let the molds sit in a cool, draft-free area, around 65°F. Wait at least 30 minutes. The bars will shrink slightly as they harden, making them pull away from the mold.
Other turns to take.
Sea Salt Bars
Sprinkle a small pinch of flaky sea salt into the mold before pouring in the chocolate.
Nutty Bars
Press toasted, chopped hazelnuts or pistachios into the back of the bars immediately after pouring.
When it doesn't go to plan.
Use a marble slab if you have one to help cool the chocolate down faster during the agitation stage.
If the chocolate becomes too thick to pour, your room is likely too cold; gently warm the bowl over the water for just five seconds.
Test your temper by spreading a small amount of chocolate on a piece of parchment paper; if it sets firm and shiny within five minutes, it is ready to pour.
The ones that keep coming up.
Why is my chocolate turning white?
This is called blooming. It happens if the chocolate wasn't tempered properly or if it was exposed to significant humidity or temperature fluctuations.
Can I use chocolate chips from the store?
Standard baking chips contain stabilizers that prevent them from melting smoothly. Use professional-grade couverture chocolate with a high cocoa butter content.
How real cooks make it.
No one’s shared their version yet. Be the first to put your kitchen on the map.
Cook this your way?
Share your version — your steps, your story. We’ll feature it right here.
Add your recipe