Authentic 1920s Martin Truffle Chocolate Cake

By AislePrompt Editorial · ·

How this recipe was made — this recipe was drafted by AislePrompt's AI-assisted pipeline from technique templates and USDA-sourced nutrition data, and published by AislePrompt Editorial — see how AislePrompt recipes are developed and reviewed.

A dense, fudgy flourless chocolate cake with a whisper of truffle, evoking the timeless elegance of Martin's vintage instruments. This French-inspired recipe, ready in about 45 minutes, layers dark chocolate, unsalted butter, eggs into a dessert worth slowing down for — great for weekend baking, holiday tables, or any time you want a sweet payoff at the end of a meal. Each serving lands at about 320 calories and feeds 8, so it slots into a weekend bake or a special-occasion dessert tray. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 20 min Cook: 25 min Serves 8 French cuisine 320 cal/serving
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Ingredients

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Instructions

  1. Step 1: Preheat oven to 350°F and line an 8-inch round cake pan with parchment paper. Melt 8 oz dark chocolate and 1/2 cup unsalted butter together in a heatproof bowl set over simmering water, stirring until smooth.
  2. Step 2: In a separate bowl, whisk 4 large eggs until pale and fluffy, then gradually add 3/4 cup granulated sugar while whisking constantly for 4-5 minutes until pale and doubled in volume.
  3. Step 3: Gently fold melted chocolate mixture into egg mixture until fully incorporated. Sift in 1/4 cup cocoa powder and 1/4 tsp salt, folding until no streaks remain.
  4. Step 4: Stir in 1 tsp truffle oil until evenly distributed. Pour batter into prepared pan and smooth the top with a spatula.
  5. Step 5: Bake for 25-28 minutes until the edges are set but the center still jiggles slightly when gently shaken. Cool completely in the pan before slicing.

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