In a bowl, combine fruit, vinegar, and 2 tsp shaker. Let marinate for 10-20 minutes.
Cut puff pastry into 9 squares.
Cut brie in 1/2" in to 1" in cubes.
Use half the olive oil to grease a standard muffin tin. Place the puff pastry in the muffin tins. Drizzle remaining oil on the puff pastry then fill each puff pastry with fruit and brie. Finish with a pinch of the remaining vanilla shaker.
Bake for 12-15 minutes or until puff pastry turns golden brown on the edges.