Name: Fondant Baulois Recipe
Prep time: 15 min
Cook time: 40 min
Total time: 6 h 55 min
Cuisine: French
Ingredients: 200 g dark baking chocolate (50% to 60% cocoa); 200 g high-quality salted butter; 1 generous tablespoon salted butter caramel (homemade or store-bought); 5 medium eggs at room temperature; 200 g brown sugar (cassonade); 1 heaping tablespoon flour (about 20 g), sifted; Butter and sugar for greasing and lining the mold

Jump to Recipe

Introduction

The Fondant Baulois is a luscious French chocolate cake known for its rich, velvety texture and delicate caramel notes. With a soft, slightly gooey center and a light meringue-like crust, it’s a dessert that will impress both family and friends.

A single-layer round chocolate cake with a smooth, slightly cracked top and a rich brown color sits on a wooden cutting board. One slice is cut out, showing the moist and dense texture inside. In the blurred background, there is a brown bowl with cream and a few radishes next to it, all set on a white marbled surface. The whole scene has soft natural light coming from a window behind. photo taken with an iphone --ar 4:5 --v 7

Ingredients

200 g dark baking chocolate (50% to 60% cocoa)
200 g high-quality unsalted butter
200 g brown sugar (cassonade)
5 medium eggs (at room temperature)
1 heaped tablespoon flour (about 20 g)
1 generous tablespoon salted butter caramel (homemade or store-bought)
Butter and sugar (to grease the mold)

Instructions

Step 1: Melt the chocolate broken into pieces with the unsalted butter using a bain-marie or microwave at low power. Stir until smooth and glossy. Add the spoonful of salted butter caramel and mix well. Let it cool slightly.
Step 2: In a large bowl or a mixer, beat the eggs with the brown sugar vigorously for about 5 minutes. The mixture should lighten in color, double in volume, and become very frothy—this creates the signature meringue crust.
Step 3: Pour the cooled chocolate-butter mixture into the egg mixture. Gently fold together using a spatula.
Step 4: Sift the flour over the batter. Incorporate it gently using a spatula by lifting the mixture to avoid deflating the eggs.
Step 5: Butter a round mold (20-22 cm) and line it with parchment paper. Pour the batter into the mold. Let the raw batter rest at room temperature for 2 hours—this helps air bubbles rise for a lighter texture.
Step 6: Preheat the oven to 210°C (fan-forced). Bake the cake for 5 minutes to set the crust. Without opening the oven door, reduce the temperature to 120°C and continue baking for 35 minutes.
Step 7: The center should still be slightly wobbly when removed from the oven. Let the cake cool at room temperature.
Step 8: Refrigerate the cake for at least 4 hours, ideally overnight. Remove it 30 minutes before serving to restore its signature fondant texture.

Tips & Variations

Use quality dark chocolate with 50–60% cocoa for the best balance of bitterness and sweetness.
Allow the batter to rest before baking; this step is crucial for the cake’s lightness and texture.
For an extra caramel punch, drizzle salted butter caramel over the cake before serving.
You can substitute brown sugar with light muscovado for a deeper molasses flavor.

Storage

Store the Fondant Baulois covered in the refrigerator for up to 3 days. For best texture, bring it to room temperature for about 30 minutes before serving. This dessert does not freeze well due to its delicate, creamy center.

How to Serve

A slice of chocolate cake is shown on a white plate with a smooth dark chocolate filling layer in the middle, surrounded by two thick, moist, dark brown cake layers on top and bottom. The top of the cake is dusted lightly with powdered sugar. Next to the slice on the plate, there are two fresh red raspberries and a small sprig of bright green mint. A silver spoon lies beside the cake on the plate. In the background, the whole chocolate cake without the slice is placed on a white plate, and there is a white ramekin filled with a caramel-like sauce with a spoon resting inside. The setting is on a white marbled texture surface. Photo taken with an iphone --ar 4:5 --v 7

Serve this delicious recipe with your favorite sides.

FAQs

Can I use salted butter instead of unsalted butter?

It’s best to use unsalted butter for better control over the salt balance, especially since the recipe already includes salted butter caramel. Using salted butter might make the cake slightly saltier than intended.

What if I don’t have salted butter caramel?

You can omit the caramel or substitute it with a homemade caramel sauce by melting sugar and mixing with butter and cream. It adds a subtle, delicious flavor but is not mandatory.