Preheat the oven to 375°F/190°C.
Make the herb butter. In a bowl combine softened butter with garlic, herbs, salt, and pepper. Mash it with a fork or just stir with a small spatula. Set aside.
Prep the turkey by cutting off any extra skin if needed. Pat it dry with paper towels.
Carefully loosen the skin with your fingers be careful not to tear it, then add half the butter underneath the skin and push it to even it out. Rub the remaining butter all over the turkey breast. Place on a roaster or on a baking pan, and roast for 45 minutes.
Check on the turkey, if it’s browning too much then cover with a piece of foil. Continue to roast until the internal temp is 160°F/71°C. About 20 minutes per pound.
When it’s done, remove from the oven, loosely tent with foil and allow it to rest for 15-20 minutes. The temp will continue to rise to 165°F/174°C.
Carve, remove from bone and slice to serve.