French Mi-Cuit Chocolate Cake (Pierre Hermé's Five-Ingredient Fondant)
France's soft-centered chocolate cake, the way pastry chef Pierre Hermé shared it in 2020: butter, sugar, eggs, a little flour and a lot of dark chocolate, baked until the edges set and the middle stays fudgy.
France has a whole family of soft chocolate cakes, and the names blur. Gault&Millau explains that the fondant, the moelleux and the mi-cuit (half-baked) or coulant start from the same base and differ in how long they bake: the mi-cuit or coulant is the least cooked, with a runny center, while a fondant bakes longer so its center stays moist but not liquid. Gault&Millau credits the runny-centered coulant to the chef Michel Bras in the 1980s, and the Michelin Guide tells his story: in 1981, after a family ski day warmed by hot chocolate in the Aubrac highlands, he spent more than two years in his kitchen at Laguiole working out a cake that tasted like it. In April 2020, during France's lockdown, the Paris pastry chef Pierre Hermé posted his own "mi-cuit" chocolate cake on Instagram, five ingredients mixed in order and baked in one pan, as AFP Relaxnews reported. It is the whole-cake cousin of the American lava cake (our Molten Chocolate Lava Cakes recipe).
📖 Origin story: Who Invented Molten Chocolate Lava Cake? Two Chefs Claim It →
Why it works the kitchen science
Mostly chocolate and butter
With only 70 g of flour holding together half a kilo of chocolate and butter, the cake can stay soft in the middle without collapsing into soup.
The pan size sets the texture
In a 9-inch pan the batter is deep enough that the edges bake through while the center stays half-baked, the mi-cuit effect, in the 30 to 35 minutes Hermé gives.
Step by step
- Step 1
Heat the oven to 350°F. Butter a 9-inch springform pan, dust it with flour and tap out the excess.
- Step 2
Melt the chocolate gently in the microwave in 30-second bursts or over barely simmering water, stirring until smooth, then let it cool 10 minutes until just warm.
- Step 3
Beat the soft butter and sugar together for 2 minutes, until creamy. Beat in the eggs one at a time, then the flour, mixing on low just until smooth.
- Step 4
Pour in the warm chocolate and mix until the batter is evenly dark and glossy, about 30 seconds.
- Step 5
Scrape into the pan, smooth the top and bake 30 to 35 minutes, until the edges are set and cracked and the center still wobbles slightly when you nudge the pan. A tester 1 inch from the edge should come out with moist crumbs, and one in the center with thick, wet batter.
- Step 6
Cool in the pan on a rack at least 1 hour; the center firms to a fudgy texture as it cools. Release the ring and serve at room temperature, plain or with crème anglaise or lightly whipped cream.
French Mi-Cuit Chocolate Cake (Pierre Hermé's Five-Ingredient Fondant)
Serves 10 · one 9-inch cake · 50 min total
Cake
- 1 cup plus 2 tbsp (250 g) unsalted butter, very soft
- 3/4 cup plus 2 tbsp (180 g) sugar
- 4 large eggs (200 g out of the shell), at room temperature
- 1/2 cup plus 1 tbsp (70 g) all-purpose flour, sifted
- 9 oz (250 g) dark chocolate, about 70%, melted and cooled until just warm
For the pan
- Butter and flour
Method
- Heat the oven to 350°F. Butter a 9-inch springform pan, dust it with flour and tap out the excess.
- Melt the chocolate gently in the microwave in 30-second bursts or over barely simmering water, stirring until smooth, then let it cool 10 minutes until just warm.
- Beat the soft butter and sugar together for 2 minutes, until creamy. Beat in the eggs one at a time, then the flour, mixing on low just until smooth.
- Pour in the warm chocolate and mix until the batter is evenly dark and glossy, about 30 seconds.
- Scrape into the pan, smooth the top and bake 30 to 35 minutes, until the edges are set and cracked and the center still wobbles slightly when you nudge the pan. A tester 1 inch from the edge should come out with moist crumbs, and one in the center with thick, wet batter.
- Cool in the pan on a rack at least 1 hour; the center firms to a fudgy texture as it cools. Release the ring and serve at room temperature, plain or with crème anglaise or lightly whipped cream.
Adapted from Pierre Hermé's mi-cuit chocolate cake as published by AFP Relaxnews on April 8, 2020 (reprinted by Free Malaysia Today). The amounts, the mixing order, 180°C (350°F) and 30 to 35 minutes are Hermé's. The report gives no pan size, serving count or doneness cue; the 9-inch springform, the 10 servings, the creaming method and the soft-center test are ours. The report names Valrhona Guanaja (70%) as Hermé's chocolate and says to use whatever good dark chocolate you have; we did not open Hermé's Instagram post itself. freemalaysiatoday.com. Ingredient list follows the source; the method is in our own words.
Tips
- Weigh the eggs if you can; Hermé lists them by weight (200 g), and a few grams more or less changes the center.
- For a firmer fondant, bake 5 minutes longer, until the center barely wobbles.
- Use chocolate you would eat on its own; the AFP report says the quality of the chocolate is the whole secret.
- Soft center, raw eggs: see the Food safety baseline before serving it to vulnerable guests.
The rules people argue about
What the sources agree on, what they don't, and what is just a good story.
- Michel Bras invented the soft-centered chocolate cake in 1981. Disputed: the Michelin Guide and Gault&Millau credit Bras, but Jean-Georges Vongerichten says he invented the molten cake in New York in 1987, and Wikipedia notes the two recipes are very different (see our Molten Chocolate Lava Cakes recipe).
- Fondant, moelleux and mi-cuit are the same cake. Disputed: Gault&Millau says they share one base but differ in baking time (mi-cuit and coulant runny, fondant moist); in everyday French the names are used loosely.
- French chocolate cake is flourless. Folklore: Hermé's has flour, and so does Le Cordon Bleu's dark chocolate fondant.
- Pierre Hermé posted the recipe in April 2020. Documented by AFP Relaxnews (Free Malaysia Today reprint, April 8, 2020).
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