Ingredients
Equipment
Method
Make the shortbread crust
- Mix all-purpose flour, softened butter, granulated sugar, and salt until crumbly, with no dry flour pockets visible.
- Press the crumbly mixture firmly into an 8x8 baking dish until the surface looks compact and even.
- Bake at 350°F for 12-15 minutes until the edges are lightly golden and the center holds its shape.
Assemble and bake the gooey layers
- Spread dulce de leche over the warm crust in an even layer, leaving a smooth top that fully covers the base.
- Melt dark chocolate chips with butter, then drizzle or spread over the dulce de leche so chocolate forms an even cover.
- Bake again at 350°F for 8-10 minutes until the chocolate is set and no longer looks glossy-wet.
Chill, slice, and finish
- Cool completely at room temperature until the bars release cleanly when handled.
- Refrigerate for at least 30 minutes so the caramel thickens and the bars cut neatly.
- Cut into 16 squares and sprinkle fleur de sel on top for a light salty finish.
- Serve at room temperature or chilled, with caramel visible in the cross-section.
Notes
For the cleanest slices, chill until fully firm, then wipe the knife between cuts. Store in an airtight container in the refrigerator for up to 4 days; freeze up to 2 months and thaw in the fridge overnight. For a dairy-light option, use plant-butter instead of butter and choose dairy-free chocolate chips (dulce de leche availability varies).
