Desserts · Part 1 of 3: Ingredients
Molten Salted Caramel Chocolate Fondant Tartlets

- Prep
- Cook
- Total
- Serves
- 4
Imagine cutting into a petite chocolate tartlet and watching a river of salted butter caramel and warm chocolate fondant flow out together, the crisp shell cracking under your fork.
That moment of pure indulgence is exactly what these molten salted caramel chocolate fondant tartlets deliver. They are surprisingly simple to assemble, thanks to store-bought tart shells, and the dramatic molten center comes from a clever layering technique.
These individual tartlets combine a crisp chocolate pastry shell with a hidden layer of salted butter caramel and a rich dark chocolate fondant that bakes to a delicate crust on top while staying gloriously molten underneath. The contrast of textures—crunchy shell, silky caramel, and gooey chocolate—is what makes them unforgettable.
The recipe is streamlined for home cooks: use quality store-bought tart shells and a simple stovetop melting method for the batter. The result is a dessert that feels special but comes together in under half an hour, with most of that time spent waiting for the oven. Serve them warm, straight from the baking sheet, for the full effect.
Ingredients
- 4 baked chocolate tart shells (store-bought or made ahead)
Filling
- 2 tbsp salted butter caramel
Fondant Batter
- 4 oz dark chocolate (70% cacao), chopped
- 1/2 cup unsalted butter, cut into pieces
- 2 large eggs
- 1/4 cup granulated sugar
- 2 tbsp all-purpose flour
Finishing
- fleur de sel, for sprinkling, to taste
Why this recipe works
The magic of this recipe lies in the two-layer assembly. The salted butter caramel is spooned directly into the baked tart shells before the chocolate fondant batter is added.
During baking, the batter sets around the edges and on top, forming a delicate crust, while the caramel and the center of the chocolate mixture remain molten. This creates the dramatic lava-like flow when the tartlet is cut into, giving you both a crisp exterior and a runny interior in every bite.
The fondant batter itself is a classic ratio of chocolate, butter, eggs, sugar, and just a little flour. The small amount of flour provides structure without making the center cakey, and the high proportion of chocolate and butter ensures a rich, glossy texture.
Baking at a high temperature for a short time is key: it cooks the eggs enough to set the structure while leaving the center soft. The result is a dessert that is both elegant and forgiving, as long as you watch the clock.
Notes and substitutions
For the tart shells, look for sweet pastry shells or mini tart shells in the freezer section of the supermarket; they should be fully baked and cooled before filling. If you prefer to make your own, use a chocolate pastry dough and blind-bake them until crisp. The salted butter caramel can be homemade or a high-quality jarred version—just ensure it is thick enough to stay in place under the batter.
Use a dark chocolate with at least 70% cacao for a deep, bittersweet flavor that balances the sweet caramel. If you only have semisweet (around 60%), the tartlets will be a bit sweeter but still delicious. The eggs should be at room temperature so they incorporate evenly into the melted chocolate. For the best texture, measure the flour carefully—too much will make the centers cakey instead of molten.
- dark chocolate: Use semisweet or bittersweet chocolate with at least 60% cacao for a balanced sweetness.
- salted butter caramel: If using unsalted caramel, add a pinch of flaky sea salt to the caramel before spooning.
- all-purpose flour: For a gluten-free version, substitute with a 1:1 gluten-free flour blend.
- granulated sugar: Use coconut sugar for a slightly deeper flavor, though the texture may be a touch grainier.
Equipment
- Mixing bowl
- Whisk
- Spatula
- Measuring spoons
- Baking sheet
- Cooling rack
Up next · Part 2 of 3
4 steps · 8 min of cooking · what to look for at each stage
Step-by-step instructions (Part 2)