Chocolate Ganache Ratios: 1:1, 2:1, and 1:2 Explained

What Is the Right Chocolate Ganache Ratio?

A chocolate ganache ratio is the weight of chocolate compared to the weight of cream. The three standard ratios are 1:1 (equal weights — soft, spreadable, all-purpose), 2:1 (twice as much chocolate as cream — firm enough to roll into truffles), and 1:2 (twice as much cream as chocolate — thin enough to pour, sauce, or whip). Same two ingredients, three completely different textures. Once you understand what each ratio does, you can make any ganache-based dessert without a recipe.

The ratio always reads chocolate first, cream second, and it is always measured by weight, not volume. A cup of chopped chocolate and a cup of cream weigh very different amounts, so measuring cups will quietly wreck your ratio. A kitchen scale fixes that permanently.

Ganache Ratios at a Glance

These ratios assume dark chocolate in roughly the 55–70% cacao range. Milk and white chocolate contain less cocoa solids and more sugar and milk fat, so they set softer and need more chocolate per gram of cream — we cover the adjustments below.

A useful mental model: cream loosens, chocolate firms. Every ganache question — too runny, too stiff, won't pour, won't roll — is answered by shifting the balance one direction or the other.

The 1:1 Ratio: The All-Purpose Workhorse

Equal weights of chocolate and cream — for example, 225 g (8 oz) of each, yielding 450 g (16 oz) of ganache. This is the ratio most recipes mean when they just say "ganache."

Texture: Pourable while warm, then sets over a few hours into something like a soft fudge frosting. It spreads cleanly, pipes soft swirls, and stays tender when you bite into it.

Use it for:

• Cake filling and frosting. Let it sit at cool room temperature until it reaches peanut-butter consistency, then spread.
• Drip cakes with dark chocolate. Use it warm — around 90–95°F (32–35°C) — so it flows down the side of a chilled cake and stops on its own. Test one drip on the back of the chilled cake first: if it runs to the board, the ganache is too warm or too thin; if it barely moves, rewarm briefly.
• Macaron and sandwich-cookie filling, where you want it set but not hard.

If a 1:1 ganache turns out slightly too soft for your climate or your cake, nudge it toward 1.5:1 next time. Warm kitchens are hard on soft ganache.

The 2:1 Ratio: Firm Ganache for Truffles

Twice as much chocolate as cream by weight — for example, 225 g (8 oz) chocolate to 115 g (4 oz) cream, which gives you about 340 g (12 oz) of ganache, enough for roughly 25 small truffles.

Texture: Sets firm enough to scoop and roll with your hands, yet still melts smoothly on the tongue. This is the classic ganache ratio for truffles.

How to use it for truffles:

1. Make the ganache (method below) and pour it into a shallow dish.
2. Cool at room temperature, then refrigerate until scoopable — typically 1 to 2 hours.
3. Scoop, roll into balls, and chill again briefly.
4. Roll in cocoa powder, chopped nuts, or dip in tempered chocolate for a snappy shell. Dipping is where a proper temper matters — our guide to how to temper chocolate covers the exact working temperatures.

If you roll truffles in cocoa, the choice of powder changes the flavor more than you might expect; darker, mellower Dutch-process is the usual pick, and our Dutch-process vs natural cocoa comparison explains why.

Also use 2:1 for: tart fillings that need a clean slice, piped ganache borders, and layer-cake fillings in hot weather.

The 1:2 Ratio: Pourable, Sauce-Like, and Whippable

Twice as much cream as chocolate — for example, 115 g (4 oz) chocolate to 225 g (8 oz) cream.

Texture: A fluid, glossy liquid while warm; cooled, it thickens only to the consistency of soft pudding. It never sets firm.

Use it for:

• Chocolate sauce for ice cream, profiteroles, or plating alongside a warm dessert like our chocolate lava cake.
• Whipped ganache. Chill 1:2 ganache thoroughly — at least 4 hours, or overnight — then whip it like whipped cream. It roughly doubles in volume and turns pale and mousse-like. Stop as soon as it holds soft peaks; overwhipping makes it grainy.
• Drinking chocolate, thinned with additional warm milk to taste.

Some pastry references also use intermediate ratios like 1:1.5 for softer glazes; once you're comfortable with the three anchors, those in-between ratios are just fine-tuning.

Adjusting for White and Milk Chocolate

Dark chocolate ratios do not transfer directly, because white and milk chocolate carry less cocoa solids (white chocolate has none) and more sugar and milk fat. They need substantially more chocolate per gram of cream to reach the same firmness. Reliable starting points:

So the standard white chocolate ganache ratio for a drip cake is about 3:1 — for example, 300 g white chocolate to 100 g cream. White chocolate is also more heat-sensitive than dark: pour the hot cream over it and let residual heat do the melting rather than applying direct heat, and finish gently in short bursts if unmelted pieces remain.

Chocolate chips are formulated to hold their shape and often contain less cocoa butter than bar chocolate, so they melt into a thicker, less glossy ganache. Chopped bar chocolate or couverture gives the most predictable results at these ratios.

How to Make Chocolate Ganache (Any Ratio)

The method is identical for every ratio; only the proportions change.

1. Chop the chocolate finely — pieces the size of a pea or smaller — and put it in a heatproof bowl. Small, even pieces melt completely from the cream's heat alone.
2. Heat the cream (heavy cream, around 36% fat) in a saucepan until it just reaches a bare simmer — small bubbles at the edge, roughly 180–190°F (82–88°C). Do not let it boil hard.
3. Pour the cream over the chocolate so every piece is covered, and let it sit undisturbed for 3 to 5 minutes.
4. Stir from the center outward with a spatula or whisk in small circles. It will look broken and streaky at first, then pull together into a smooth, glossy emulsion.
5. Add extras last: a pinch of salt, a teaspoon of vanilla, or a tablespoon of soft butter per 225 g of chocolate for extra shine.

For 2:1 and stiffer white-chocolate ratios, there may not be enough hot cream to melt everything. If a few stubborn pieces remain, set the bowl over barely simmering water (or microwave in 10-second bursts), stirring between, just until smooth.

Troubleshooting Ganache

Ganache too runny? How to fix it

First, wait. Ganache thickens dramatically as it cools; what looks like sauce at 100°F (38°C) can be spreadable frosting at 70°F (21°C). Give it 2 to 4 hours at room temperature, or refrigerate in 15-minute increments with stirring.

If it is still too thin once fully cool, the ratio is genuinely off. Melt more chopped chocolate separately, then stir it into the (slightly rewarmed) ganache. Adding un-melted chocolate to cool ganache produces lumps.

Ganache too stiff

Warm 1 to 2 tablespoons of cream and stir it in, repeating until you reach the texture you want. You can also rewarm stiff ganache gently over a water bath to loosen it temporarily.

Grainy or split ganache

A greasy, curdled-looking ganache is a broken emulsion, usually from overheating or too little liquid. Two reliable fixes:

• Blend it. An immersion blender re-emulsifies most broken ganaches in under a minute. Keep the head fully submerged to avoid whipping in air.
• Add warm liquid. Whisk in warm cream or milk a tablespoon at a time until it smooths out. This loosens the ratio slightly, so expect a softer set.

Graininess in white chocolate ganache is often scorched chocolate rather than a broken emulsion — and scorching cannot be fixed, only prevented with gentler heat next time.

Storing Ganache Safely

Ganache contains fresh cream, so treat it like a dairy product. Once cooled, refrigerate it in an airtight container and use it within one week. For longer storage, freeze it for up to 3 months and thaw overnight in the refrigerator. Rewarm gently over a water bath, stirring, to bring it back to working consistency; whipped ganache should be whipped fresh rather than frozen after whipping.

For finished desserts, follow the same logic: truffles and ganache-filled cakes keep best covered in the refrigerator, brought toward room temperature for 30 to 60 minutes before serving so the texture softens and the flavor opens up.

The Short Version

• Ratios are chocolate to cream, by weight. Buy a scale.
• 2:1 for truffles, 1:1 for frosting and dark-chocolate drips, 1:2 for sauce and whipped ganache.
• Milk and white chocolate need more chocolate — up to 3:1 for a white chocolate drip.
• Cream loosens, chocolate firms. Every fix is one of those two moves.
• Runny ganache usually just needs time to cool; split ganache usually just needs an immersion blender.

Master these three numbers and ganache stops being a recipe you look up and becomes a tool you reach for.