Equipment
* optional
Ingredients
ramekin preparation
- 15 g unsalted butter, softened
- 20 g granulated sugar
souffle base and meringue
- 150 g bittersweet chocolate, finely chopped
- 60 g unsalted butter, diced
- 4 eggs, separated into yolks and whites, room temperature
- 60 g granulated sugar
- 1 g fine sea salt
Nutrition (per serving)
Nutrition is estimated per serving. Nutrients without complete source data are omitted.
Full nutrition
- Calories
- 497 kcal
- Protein
- 9 g
- Carbohydrates
- 40 g
- Fat
- 35 g
- Fiber
- 3 g
- Sugar
- 34 g
- Sodium
- 170 mg
- Saturated Fat
- 20 g
- Potassium
- 74 mg
- Calcium
- 44 mg
- Iron
- 6.3 mg
- Magnesium
- 6 mg
- Phosphorus
- 104 mg
- Zinc
- 0.7 mg
- Vitamin A
- 216 mcg
- Vitamin C
- 0 mg
- Water
- 41 g
Sources: Aggregated Public Data, USDA FoodData Central
Method
Position an oven rack in the lower third of your oven and place a sturdy baking sheet directly onto the rack. Preheat the oven to 190°C (375°F).
Using a pastry brush, coat the bottom and inner sides of four 180ml ceramic ramekins with 15g softened unsalted butter, brushing exclusively upward in vertical strokes.
Add 20g granulated sugar to one ramekin, rotate to coat bottom and sides thoroughly, pour excess sugar into the next ramekin, repeat for all four, and discard remaining loose sugar.
Set a heatproof mixing bowl over a small saucepan containing 3 cm of gently simmering water over low heat, ensuring the bowl bottom does not touch water. Add 150g finely chopped bittersweet chocolate and 60g diced unsalted butter, stirring occasionally with a silicone spatula until melted and glossy.
Remove the mixing bowl from the steam and let the melted chocolate mixture cool undisturbed until lukewarm to the touch, approximately 45°C (113°F).
Add 4 room temperature egg yolks and 1g fine sea salt to the cooled chocolate mixture and whisk briskly until completely smooth and thickened.
In the bowl of a stand mixer fitted with the whisk attachment, whip 4 room temperature egg whites on medium speed until frothy, then gradually stream in 60g granulated sugar while increasing speed to medium-high until glossy, firm peaks with slightly drooping tips form.
Scoop one-third of the whipped egg whites into the chocolate base and fold vigorously with a silicone spatula to lighten the density of the mixture.
Gently transfer the remaining egg whites into the bowl and fold using broad circular strokes down the center, along the bottom, and up the sides, stopping immediately when no white streaks remain.
Divide the batter evenly among the four prepared ramekins, filling each flush to the rim, and swipe a metal spatula or straight edge across the rims to level the tops.
Run the tip of your clean thumb or index finger around the inside rim of each ramekin to create a shallow, even 2mm channel between the batter and ceramic.
Carefully transfer the ramekins onto the preheated baking sheet inside the oven and bake at 190°C (375°F) for 12 to 14 minutes, keeping the oven door closed until the tops have puffed 2 to 3 cm above the rim and an instant-read digital thermometer inserted into the center reads at least 71°C (160°F) for safe egg doneness.
Remove the baking sheet from the oven and serve the souffles immediately while dramatically puffed and hot.
Chef's Notes
- High-grade bittersweet chocolate with 70 percent cocoa solids provides the necessary structural cocoa butter and intense flavor profile, eliminating the need for flour, cornstarch, or milk.
- Egg separation is cleanest when eggs are cold straight from the refrigerator, but whites whip to their greatest volumetric capacity when allowed to sit at room temperature for 30 minutes before whipping.
- Ensuring your mixing bowl and whisk attachment are completely free of grease, egg yolk traces, or detergent residue is vital for stable egg white foam formation.
- To prepare ahead for dinner parties, assemble the souffles in ramekins up to 24 hours in advance, refrigerate them, and bake them straight from the refrigerator, adding roughly 2 to 3 minutes to the total baking duration.
Storage
Refrigerator: 24 hours — Unbaked batter can be portioned into prepared ramekins, covered loosely with plastic wrap, and chilled for up to 24 hours. Add 2 to 3 minutes to total baking time when baking directly from chilled.
Reheating: Baked souffles collapse naturally as air cools and are intended to be eaten immediately. Leftovers can be refrigerated for up to 24 hours and warmed in a 150°C (300°F) oven for 6 to 8 minutes until reaching an internal temperature of 74°C (165°F) for food safety.
Troubleshooting
Souffle tilts to one side or rises unevenly
Cause: Butter was applied horizontally or the top rim was not cleaned with a thumb trench before baking
Fix: Cannot be fixed once baked; the flavor and texture remain unaffected
Prevention: Always brush softened butter in straight vertical upward strokes and run a clean finger around the top inside rim to create a 2mm clear margin
Souffle center is wet, runny, and under 71°C (160°F)
Cause: Oven temperature running cool or insufficient baking time
Fix: Return to the 190°C (375°F) oven immediately for an additional 2 to 3 minutes until internal center reaches 71°C (160°F)
Prevention: Verify oven temperature with an oven thermometer and ensure ramekins rest directly on a preheated baking sheet
Souffle turns dense and fails to rise properly
Cause: Egg whites were either under-whipped, over-whipped to dry graininess, or deflated by aggressive folding
Fix: Cannot be fixed once baked; enjoy as a dense chocolate molten pot
Prevention: Stop whipping egg whites at medium-firm glossy peaks and fold using gentle circular sweeps with a silicone spatula
Chocolate base seizes into a stiff, grainy mass
Cause: Water splashed into the melting chocolate or temperature was excessive
Fix: Vigorously whisk in 15ml of boiling water to re-emulsify the chocolate solids before adding yolks
Prevention: Keep simmering water low and ensure steam cannot escape into the bowl
Cultural Context
Originating in eighteenth-century France and refined by chef Marie-Antoine Careme in the early nineteenth century, the souffle takes its name from the French verb souffler, meaning to blow or puff. While many traditional sweet souffles rely on a flour-thickened pastry cream base, this flourless rendition celebrates the pure intensity of bittersweet chocolate, making it an enduring romantic standard for Valentine's Day and festive dinner centerpieces.
