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This flourless chocolate truffle cake is dense, rich, and unapologetically chocolate-heavy. Butter, semi-sweet chocolate, eggs, coffee, and a splash of amaretto bake into a silky cake with a truffle-like texture, then the whole thing gets covered in chocolate ganache and toasted almonds.

It’s naturally gluten free and deeply fudgy, with a firm, fudge-like texture when chilled and a softer, more velvety texture at room temperature.

Chocolate cake with sliced almonds on stand; slice lifted to show fudgy center.

This recipe is similar to our Flourless Chocolate Torte but with yummy extras that make it extra special (amaretto, ganache, and crunchy almonds!).

Here’s Why This Flourless Truffle Cake Works

This cake is built to be flourless from the start, so the texture is the whole point. It isn’t trying to be a standard chocolate cake. When it’s chilled, it has a firm, fudge-like texture like a French Chocolate Truffle.

After it sits at room temperature, it softens into something smoother and silkier.

I use a full pound of chocolate and a full pound of butter because this is meant to land closer to a truffle than a cake with a crumb. It’s rich, dense, and very chocolate-forward, so a small slice goes a long way.

The mix of whole eggs and extra yolks helps the cake set without turning cakey. The yolks add richness and help keep the texture smooth.

The coffee deepens the chocolate flavor without making the cake taste like mocha. The amaretto and almond extract add a subtle almond flavor that ties in with the toasted almonds on the outside.

Flourless chocolate cake slice with almonds on white plate, gold fork, mint garnish.

Ingredient Notes

Semi-sweet chocolate: This cake is built around the chocolate, so use one you like eating on its own. Semi-sweet gives the cake a deep chocolate flavor without pushing it too bitter.

Butter: A full pound of butter gives the cake its rich, truffle-like texture. This is not the place for margarine, unless sadness is the goal.

Eggs and egg yolks: Whole eggs help the cake set, while the extra yolks keep the texture smooth and rich instead of cakey.

Coffee: The brewed coffee deepens the chocolate flavor without making the cake taste like coffee. It just makes the chocolate taste more like itself.

Amaretto: Amaretto adds a subtle almond flavor that works with the chocolate and toasted almonds. Amaretto syrup works too if you want to skip the liqueur.

Almond extract: A little goes a long way. It reinforces the almond flavor, but too much can take over fast.

Toasted almonds: Toasting the almonds gives them better flavor and crunch, and they make the cake look finished without needing fancy decorating skills.

Flourless chocolate cake with sliced almonds on stand, one slice on a plate.

Texture Expectations

This cake is not supposed to bake up light and fluffy. It is dense, smooth, and very rich, closer to a chocolate truffle than a traditional cake.

When it first comes out of the oven, the center may look set but still feel soft. That is normal. The cake continues to firm up as it cools, and the texture becomes denser after it chills.

Serve it cold for a firm, fudge-like texture, or let it sit at room temperature for about 30 minutes for a softer, silkier texture and fuller chocolate flavor.

This truffle cake is extra chocolatey, even more than our Chocolate Layer Cake.

Round pan with chocolate cake batter on baking sheet, light cloth behind.

For more chocolate and amaretto desserts, try our Chocolate Amaretto Mousse. It has the same chocolate-almond flavor combination in a lighter, fluffier dessert. We also use those flavors in our Amaretto Mousse Cake, with coffee adding a deeper edge to the chocolate.

Recipe Tips

Line the pan well. Snap the parchment under the springform ring so it fits tightly against the base. That helps reduce leaking, and the rimmed baking sheet underneath catches anything that sneaks out anyway.

Cool the chocolate slightly. Let the melted chocolate and butter cool a bit before adding it to the eggs. It should still be fluid, just not hot enough to start cooking the eggs on contact.

Keep the mixing gentle. Stir the batter until everything is smooth and combined, but don’t whip it. You’re not trying to add air here. The goal is a dense, truffle-like texture, not a fluffy cake.

Chill before adding the ganache. A cold cake is firmer and much easier to coat cleanly, especially around the sides.

Use a hot knife for slicing. Dip a thin knife in hot water and wipe it clean between cuts for the neatest slices. It takes an extra minute, but it makes a difference with a rich cake like this.

I cool the cake slowly in the oven because flourless chocolate cakes can sink or crack if the temperature changes too quickly. Letting it cool gradually helps keep the texture smooth and even.

Round dark chocolate cake in springform pan on white surface with striped cloth.

How to Serve This Cake

This cake changes texture depending on the temperature, and honestly, both versions are good.

Straight from the refrigerator, the texture is dense and firm, almost like a slice of chocolate fudge. Once it sits at room temperature for a while, the texture softens and the chocolate flavor comes through more fully.

I usually let it sit out for about 30 to 60 minutes before serving because I think the texture and flavor are at their best then. But if you sneak a cold slice straight from the fridge, nobody here is judging.

Chocolate truffle cake with almonds on a plate, beside black coffee.

Flourless Chocolate Cake

This flourless chocolate truffle cake is the kind of dessert that earns its place at the center of the table. It’s rich, deeply chocolatey, and somewhere between a slice of fudge and a chocolate truffle depending on the temperature. The toasted almonds and ganache give it just enough contrast to keep each bite interesting without distracting from the chocolate.

It also keeps well in the refrigerator, which makes it a good make-ahead dessert for holidays, dinner parties, or any time you want a dessert that feels a little extra without requiring fancy decorating skills.

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4.60 from 5 votes (5 ratings without comment)

2 Comments

angiesrecipes says:

March 11, 2022 at 8:01 PM

Creamy, rich, chocolatey, and nutty…that sounds and looks like the yummiest treat in the world, Pat!

1. Pat Nyswonger says:
  
  March 11, 2022 at 8:31 PM
  
  Thanks, Angie….also, rich and delicious!