Preheat oven to 350 degree F. Spray baking sheet with vegetable spray and set aside.
Using a knife to cut a pocket into the side of each chicken breast. Salt and pepper the chicken on the inside and the outside.
Heat a large skillet to medium high heat, Add olive oil and heat. Place chicken in hot pan and brown each side for 2 minutes.
Remove chicken from the skillet and place in baking dish.
Using tongs, carefully stuff chicken with the sliced Brie cheese.
Layer cheese with ½ cup crumbled bacon, saving ¼ cup for the top of the chicken.
Spoon apricot spread over the top of the chicken.
Top with remaining bacon and bake for 35 to 40 minutes, or until chicken is done.
Drizzle chicken with reduced balsamic and serve.