One-Hour Flourless Chocolate Cake
Dense and fudgy flourless chocolate cake with a rich chocolate flavor that comes together in just one hour. This french-inspired desserts (gluten free) ready in about 45 minutes layers (225g), chopped bittersweet chocolate, (113g) unsalted butter, (150g) granulated sugar 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 350 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.
Ingredients
- 8 oz (225g), chopped bittersweet chocolate
- 1/2 cup (113g) unsalted butter
- 3/4 cup (150g) granulated sugar
- 4 large eggs
- 1/4 cup (25g) unsweetened cocoa powder
Equipment for this recipe
Top-rated tools to make this recipe successfully.
Instructions
- Step 1: Preheat oven to 375°F (190°C). Grease an 8-inch round cake pan and line the bottom with parchment paper.
- Step 2: In a heatproof bowl set over a saucepan of simmering water, melt 8 oz (225g) chopped bittersweet chocolate with 1/2 cup (113g) unsalted butter, stirring occasionally until smooth.
- Step 3: Remove from heat and whisk in 3/4 cup (150g) granulated sugar until combined.
- Step 4: Add 4 large eggs one at a time, whisking well after each addition until the batter is glossy.
- Step 5: Sift 1/4 cup (25g) unsweetened cocoa powder over the batter and fold gently until just incorporated.
- Step 6: Pour batter into the prepared pan and bake for 25-30 minutes until the top is set but the center is still slightly soft.
- Step 7: Cool in the pan for 10 minutes, then invert onto a plate and cool completely before serving.
Frequently asked questions
How long does One-Hour Flourless Chocolate Cake take to make?
Total time is about 45 minutes (15 min prep + 30 min cook). Most home bakers find this fits a weekend afternoon; chill or store as the recipe directs before serving.
How do I store leftover One-Hour Flourless Chocolate Cake?
Cool fully before storing. Most baked desserts keep at room temperature in an airtight container for 2–3 days, or in the fridge for up to 5 days. Cream- or custard-based desserts must go in the fridge within 2 hours; reheat gently or serve cold per the recipe.
Can I substitute ingredients in One-Hour Flourless Chocolate Cake?
Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.
How do I scale One-Hour Flourless Chocolate Cake for a different number of people?
The recipe is written for 8 servings. Multiply each ingredient by (your serving target / 8). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.
Is One-Hour Flourless Chocolate Cake gluten free?
Yes — this recipe is tagged gluten free based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.
