How to Make Chocolate Ganache and Truffles at Home

Ganache is an emulsion of chocolate and cream where fat droplets from cocoa butter and milk fat are suspended in the water phase provided by the cream. The ratio of chocolate to cream determines everything — texture, richness, stability, and what you can do with it. Get the ratio right and the technique is forgiving. Get it wrong and no amount of stirring will save it.

The word itself comes from French, and supposedly originated as an insult (“ganache” means “jowl” or “fool”) when an apprentice accidentally poured hot cream into chocolate. The mistake turned out to be one of the most useful preparations in all of confectionery.

Understanding Ganache Ratios

The fundamental variable in ganache is the ratio of chocolate to cream, measured by weight. Different chocolate types need different ratios because they contain different amounts of cocoa butter, cocoa solids, sugar, and milk fat — and each of those affects how the emulsion behaves.

A 70% dark bar contains roughly 35 to 40 percent cocoa butter — the fat content of the nib runs 50 to 57 percent, and at 70% cacao that lands around 35 to 40 percent total fat in the finished bar. That high fat content is exactly why dark chocolate needs the least cream. White chocolate, by contrast, contains a minimum of 20 percent cocoa butter and 14 percent milk solids but zero cocoa solids, and it is extremely temperature-sensitive — its working temperature should never exceed 28 to 29 degrees Celsius.

The Method: Building a Stable Emulsion

Making ganache is straightforward, but the details matter. The goal is a stable emulsion with no air whipped in, no scorched chocolate, and no broken fat phase.

Step 1: Chop the chocolate finely. Uniform pieces melt evenly. For a well-formulated chocolate, aim for pieces no larger than a centimeter. If you only have chocolate chips, note that they often contain stabilizers that affect texture — couverture or bar chocolate is preferable.

Step 2: Heat the cream. Bring heavy cream (minimum 35% fat) to a bare simmer — small bubbles around the edges, not a rolling boil, around 85 to 90 degrees Celsius. Overheated cream scorches and tastes cooked.

Step 3: Pour and wait. Pour the hot cream over the chopped chocolate and let it sit for 60 to 90 seconds without touching it, so the heat can begin melting the chocolate from the outside in.

Step 4: Stir from the center. With a spatula or whisk, stir in small circles from the center of the bowl outward. You are building the emulsion out — the center goes glossy and smooth first, then gradually pulls in the outer ring. Do not whisk hard or you will incorporate air.

Step 5: Check the emulsion. Finished ganache is glossy, smooth, and homogeneous. Streaks of fat or a grainy texture mean the emulsion has broken; add a tablespoon of warm cream to the center and stir outward again until it comes back together.

Step 6: Cool appropriately. For truffles, press plastic wrap onto the surface (to prevent a skin) and refrigerate at least 2 hours, or until firm enough to scoop. For pourable uses, work at 30 to 35 degrees Celsius.

Flavor Infusions

Ganache is an ideal vehicle for flavor because the fat phase carries aromatic compounds efficiently. Infuse the cream before combining it with the chocolate.

Heat infusions (steep in warm cream for 15–30 minutes, then strain):

• Earl Grey or chai tea — 2 tablespoons loose leaf per 150 g cream
• Fresh mint — a generous handful of bruised leaves
• Lavender — 1 tablespoon dried buds (use sparingly; it turns soapy if overdone)
• Cinnamon, cardamom, star anise — lightly toast whole spices first
• Coffee — 2 tablespoons coarsely ground beans
• Chili — 1–2 dried chilis, split and seeded

Direct additions (stir into finished ganache):

• Vanilla extract or scraped vanilla bean — 1 teaspoon per 300 g chocolate
• Spirits and liqueurs — 1–2 tablespoons per 300 g chocolate (rum, bourbon, Grand Marnier, amaretto). Alcohol weakens the emulsion slightly, so reduce the cream by the same volume.
• Nut butters — 2–3 tablespoons per 300 g chocolate, stirred in while the ganache is still warm
• Citrus zest — finely grated zest of one lemon, orange, or lime per 300 g chocolate
• Salt — a pinch of flaky sea salt transforms dark chocolate ganache

When working with different cacao origins, match the pairing to the bean’s natural profile. A bright, fruity Madagascar-origin chocolate loves raspberry or citrus; an earthy, nutty Ecuadorian chocolate takes well to coffee or toasted hazelnut.

Rolling and Shaping Truffles

Once the ganache has chilled at least 2 to 4 hours (overnight is even better for dark chocolate), it is ready to portion and shape.

Scooping: Use a melon baller or small cookie scoop (about 2 teaspoons per truffle) to portion the ganache onto a parchment-lined sheet. Work quickly — the warmth of your hands softens it. If it gets too soft, return it to the fridge for 15 minutes.

Rolling: Dust your palms lightly with cocoa powder (natural or Dutch process — your preference) and roll each portion into a rough sphere. Perfection is not the goal; slightly irregular shapes are the mark of handmade truffles. Work in batches of 6 to 8, keeping the rest in the fridge.

The hand-temperature problem: Your hands warm the ganache. Some chocolatiers wear gloves and dip their hands in ice water between batches; others simply work fast. If truffles are melting as you roll, the ganache needed more chilling or the room is too warm. The ideal working environment is below 20 degrees Celsius.

Coating Options

Naked truffles are beautiful, but a coating adds texture contrast and extends shelf life by sealing the surface.

Cocoa powder: The classic. Roll finished truffles in high-quality unsweetened cocoa powder and shake off the excess in a fine strainer. Fastest coating, sophisticated slightly-bitter exterior.

Chopped nuts: Toast and finely chop pistachios, hazelnuts, or almonds, and roll truffles in them while the surface is still slightly tacky.

Coconut: Finely shredded, toasted or raw. Works especially well with white chocolate ganache.

Tempered chocolate shell: The professional approach, and the one place in truffle-making where precise temperature control pays off. Temper your chocolate to the correct working temperature — 31 to 32 degrees Celsius for dark, 29 to 30 for milk, 28 to 29 for white. Drop a chilled truffle center into the tempered chocolate with a fork or dipping tool, lift it out, tap off the excess, and set it on parchment. A properly tempered shell sets glossy with a satisfying snap within 3 to 5 minutes at room temperature.

Because the shell has to land inside a narrow window, this is the step where an instant-read thermometer earns its keep — cocoa butter’s Form V crystals only survive between roughly 31 and 34 degrees Celsius for dark chocolate. A fast, accurate probe like the Thermapen ONE Digital Thermometer reads in about a second, which matters when the temperature is drifting as you dip.

Drizzle: For a decorative finish, drizzle contrasting tempered chocolate over set truffles with a fork or piping bag — white on dark, or dark on white.

Ganache for Other Applications

Truffles are the most common use, but ganache is one of the most versatile preparations in pastry.

Cake filling and frosting: Use a 1:1 ratio (equal parts chocolate and cream) for a softer ganache. Let it cool to room temperature, then whip with a hand mixer until fluffy and lightened in color for a mousse-like frosting that pipes beautifully.

Tart filling: Pour warm ganache (a pourable 1.5:1 ratio) into a pre-baked tart shell and refrigerate at least 2 hours until set. The surface should be glossy and smooth; serve at cool room temperature.

Glaze (ganache miroir): A 1:1 ratio with an added tablespoon of corn syrup per 100 g chocolate makes a pourable, self-leveling glaze. Pour over cakes at 35 degrees Celsius for a mirror finish.

Chocolate sauce: A 1:1.5 ratio (more cream than chocolate) makes a pourable sauce that stays liquid at room temperature. Finish with a tablespoon of butter for extra sheen.

Troubleshooting Ganache

Grainy or broken: The emulsion separated — usually cream too hot, or over-aggressive stirring. Add 1 to 2 tablespoons of warm cream to the center and stir slowly outward. If that fails, gently warm the broken ganache over a double boiler to about 35 degrees Celsius, stirring constantly, until it re-emulsifies.

Too thin: Too much cream for the chocolate. Melt additional chopped chocolate and fold it into the warm ganache in small increments, or simply chill longer — some ganache that seems thin at room temperature firms up after 4 to 6 hours in the fridge.

Too thick or stiff: Not enough cream, or an unusually high-cocoa-butter chocolate. Warm the ganache gently and stir in cream a tablespoon at a time. Remember that two-ingredient craft chocolate (beans and sugar only, no added cocoa butter or lecithin) is naturally more viscous than European-style chocolate, which shows up in ganache texture.

White spots after storage: Likely fat bloom — the cocoa butter has recrystallized into the more stable Form VI. It is cosmetic, not a safety issue. Store truffles below 18 degrees Celsius and avoid temperature swings; the underlying science is in our guide to fat bloom and sugar bloom prevention.

Seized into a thick, clumpy mass: Water contamination. Even a little water makes the sugar particles in the chocolate clump — the same mechanism behind chocolate viscosity problems. Prevention is the only cure: make sure every piece of equipment is completely dry before you start.

Storage and Shelf Life

Ganache truffles keep for 2 to 3 weeks in an airtight container in the refrigerator. Truffles with a tempered chocolate shell last slightly longer, because the shell is a moisture barrier, and truffles containing alcohol keep modestly longer thanks to its preservative effect.

Bring truffles to cool room temperature (about 18 to 20 degrees Celsius) for 15 to 20 minutes before serving — cold ganache is muted, because, as with properly tempered chocolate, the temperature at the moment of tasting shapes how the flavor compounds reach your palate.

For longer storage, uncoated ganache balls freeze for up to 2 months; thaw overnight in the fridge, then coat. Tempered chocolate shells do not freeze well — the temperature shock causes bloom.