Ultimate Flourless Chocolate Truffle Cake
This Ultimate Flourless Chocolate Truffle Cake is rich, silky, unapologetically decadent, and absolutely not here to play games. No flour, no crumbs, no regrets—just pure chocolate intensity with a glossy glaze and crunchy pecan sides to prove you meant business.
This is the kind of dessert you make when you want silence at the table. The kind that makes people close their eyes after the first bite. The kind that does not need frosting because it is the moment.
Why You’ll Love This Recipe
- Deep, intense chocolate flavor (thanks to two kinds of chocolate + cocoa)
- Naturally gluten-free without trying too hard
- Truffle-like texture that melts on your tongue
- Fancy enough for holidays, simple enough to actually pull off
- Gets better after chilling overnight (a planner’s dream)
Making an Ultimate Flourless Chocolate Truffle Cake
Step 1: Prep the Pan: Preheat oven to 300°F. Butter the bottom and sides of a 9-inch springform pan.
Line the bottom with parchment paper (or a coffee filter—yes, it works), spray with nonstick spray, then dust with cocoa powder.
Step 2: Melt the Chocolate: Microwave bittersweet chocolate, 4 oz. of the semisweet chocolate, and 3/4 cup of the butter on MEDIUM (50% power) until smooth, about 2–3 minutes, stirring after 1 minute and then every 30 seconds.
Set aside to cool for 15 minutes.
Step 3: Whip the Eggs: In a large bowl, beat eggs, sugar, coffee, salt, and 2 tsp. of the vanilla using a stand mixer with a whisk attachment on medium-high speed until pale, foamy, and doubled in volume (about 3–4 minutes).
Step 4: Combine: Reduce mixer speed to low and slowly add melted chocolate mixture.
Increase to medium-high and beat until blended, about 30 seconds.
Step 5: Add Cocoa: Sift cocoa powder over batter. Beat on medium-low just until combined (20–30 seconds).
Step 6: Bake: Pour batter into prepared pan. Bake until the center reaches 140°F, about 40–45 minutes.
Cool in pan on a wire rack for 30 minutes, gently pressing the edges down as it cools so the top levels out.
Step 7: Chill (Don’t Skip This): Flip cake over onto a cake plate, remove pan and parchment, cool 1 hour.
Wrap tightly and chill 8 hours or overnight.
Make the Chocolate Glaze
Microwave corn syrup, remaining 6 oz. of the semisweet chocolate, and the last 1/4 cup of butter on MEDIUM (50% power) until melted, stirring every 30 seconds. Stir in vanilla.
Pour glaze over chilled cake and spread over top and sides. Lastly, press toasted pecans along the sides.
Chill 20 minutes before serving, which helps set the glaze. I do, however, recommend taking the cake out about 20 minutes before serving, especially if it’s been in the refrigerator for hours.
How to Customize Your Ultimate Flourless Chocolate Truffle Cake
- Nut-free: Skip the pecans and leave the sides gloriously glossy
- Extra fancy: Add a pinch of espresso powder to the glaze
- Holiday vibes: Sprinkle flaky sea salt on top before chilling
- Chocolate maximalist: Use dark chocolate glaze instead of semisweet
Storage Tips
- Refrigerate covered up to 5 days
- Freezes beautifully (wrap tightly, thaw overnight in fridge)
- Serve slightly chilled for peak truffle texture
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Ultimate Flourless Chocolate Truffle Cake
Ingredients
- 1 cup unsalted butter, sliced (plus more for greasing pan)
- 1/4 cup unsweetened cocoa (plus more for dusting pan)
- 8 oz. bittersweet baking chocolate, chopped (2-4oz. bars)
- 10 oz. semisweet baking chocolate, chopped and divided (2.5-4oz. bars)
- 5 large eggs
- 1 cup granulated sugar
- 2 Tbsp. strong brewed coffee
- 1/4 tsp. salt
- 2 1/2 tsp. vanilla extract, divided
- 4 tsp. light corn syrup (or honey)
- 1 cup chopped pecans, toasted
Instructions
Cake:
- Grease bottom and sides of 9-inch springform pan with butter. Line bottom with parchment paper (or coffee filter), spray with non-stick spray, then dust paper with cocoa powder.
- In microwavable bowl, add bittersweet chocolate, 4 oz. of semisweet chocolate, and 3/4 cup of butter. Microwave on MEDIUM (50% power) until melted and smooth, 2-3 minutes, stirring after 1 minute and then every 30 seconds. Cool for 15 minutes.
- Preheat oven to 300°F.
- In large bowl, beat eggs, sugar, coffee, salt, and 2 tsp. vanilla with stand mixer with whisk attachment on medium-high speed until very foamy, pale in color, and doubled in volume, 3-4 minutes. Reduce speed to low; gradually add melted chocolate mixture. Increase speed to medium-high and beat until well blended. Sift cocoa over mixture; beat on medium-low speed until combined, 30 seconds.
- Pour batter into prepared pan and bake for 40-45 minutes, or until a thermometer inserted into the center reads 140°F. Cool in pan on wire rack for 30 minutes.
- Gently push down edges with fingertips until top is even. Run knife around edges of cake and remove sides. Flip over onto a cake plate. Remove bottom of pan and parchment paper. Cool 1 hour, then cover with plastic wrap and chill for 8 hours or overnight.
Chocolate Glaze:
- In microwavable bowl, add corn syrup, remaining 6 oz. semisweet chocolate, and remaining 1/4 cup butter. Microwave on MEDIUM heat (50% power) until melted, 1-1.5 minutes, stirring every 30 seconds. Stir in remaining 1/2 tsp. vanilla. Pour glaze over cake; spread over top and sides. Press toasted pecans into sides of cake. Chill cake 20 minutes before serving. Enjoy!
Nutrition
Ultimate Flourless Chocolate Truffle Cake
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