- Preheat the oven to 400°F.
- Thaw puff pastry sheets and cut them into even 9 square pieces (or more depending on sheet size) by slicing in 3 rows of 3.
- Grease each muffin tin cavity generously with oil.
- Press the puff pastry into each cup, ensuring that it is firmly in place at the bottom and gently forming a cup shape.
- Layer pieces of brie cheese onto the pastry before adding 1 teaspoon of jam on top for sweetness.
- Bake for 15 minutes or until golden brown, then take out to cool briefly before plating your delicious bite-sized snacks!