Steps
- Preheat a panini press. Mix 3 tablespoons of Dijon mustard with 3 tablespoons of softened butter.
- Lightly spread one side of 8 sourdough bread slices with some Dijon butter. Divide 8 deli ham slices, 12 Brie slices, and 1 thinly sliced Granny Smith apple between four slices, then close with the buttered sides inward.
- Coat the outsides lightly with the remaining Dijon butter. Press for about 5 minutes, following the appliance instructions, until golden and the cheese melts; cool slightly before cutting.