Preheat your oven to 425 degrees.
Prepare a rimmed baking sheet with tinfoil and a wire rack coated with cooking spray. Set aside.
Rinse and dry chicken breasts with paper towel so they are totally dry.
In a small bowl or measuring cup pour your olive oil.
Add sage, thyme or Italian seasoning and garlic. Stir to combine. Set aside.
Using your finger, carefully loosen the skin from the breast meat to create a sort of pocket.
Spread some of the olive oil mixture under the skin of the chicken and the rest all over the skin.
Tuck slices of folded prosciutto underneath the skin. We shove as many slices that will fit! Don't worry if the prosciutto sticks out from under the skin. The skin will help hold the prosciutto in place while it cooks.
Rub a final coat of the olive oil mixture on the chicken breasts and place them on your prepared pan, skin side up.
Sprinkle all of the chicken breasts with pepper and a little salt.
Bake for 25-35 minutes, or until juices run clear.
Allow to rest for 5 minutes or so before serving. Enjoy!