Prepare the Citrus Herb Butter

1. Mix Butter and Flavors: In a bowl, combine the softened butter, lemon zest, orange zest, rosemary, thyme, sage, garlic, salt, and pepper. Mix until well combined.

Prepare the Turkey Breast

1. Preheat the Oven: Preheat your oven to 350°F (175°C).
2. Loosen the Skin: Gently loosen the skin from the turkey breast, being careful not to tear it.
3. Apply Butter Under the Skin: Rub about two-thirds of the citrus herb butter mixture under the skin of the turkey, spreading it evenly.
4. Apply Butter on Top: Rub the remaining butter on the outside of the skin.

Roast the Turkey

1. Arrange Aromatics in Roasting Pan: Place the quartered onion, lemon slices, and orange slices in the bottom of a roasting pan. Pour in the chicken broth.
2. Place Turkey Breast on Top: Set the prepared turkey breast on top of the aromatics.
3. Roast in Oven: Roast in the preheated oven for about 1 hour and 30 minutes to 1 hour and 40 minutes, or until the internal temperature reaches 165°F (74°C). Baste occasionally with pan juices.
4. Rest Before Slicing: Let the turkey rest for at least 15 minutes before carving.

Serve

1. Slice and Serve: Carve the turkey breast and serve it with the roasted citrus and herbs.