In a mixing bowl, combine the softened butter, minced garlic, chopped rosemary, thyme, sage, lemon juice, salt, and pepper. Mix well to form a herb butter paste.
Pat the turkey dry with paper towels, both inside and out. Gently separate the skin from the turkey breast using your fingers, creating pockets to fill with the herb butter mixture.
Spread half of the herb butter mixture under the skin of the turkey, making sure to cover the breast evenly. Use the remaining butter to coat the exterior of the turkey.
Season the inside of the turkey cavity with salt and pepper and stuff it with the quartered onion, chopped carrots, and celery.
Place the turkey breast side up on a roasting rack in a large roasting pan. Pour the chicken broth into the bottom of the pan to keep the turkey moist during roasting.
Roast the turkey in the preheated oven for about 13-15 minutes per pound, or until the internal temperature reaches 165°F (75°C) in the thickest part of the breast and thigh. Baste the turkey every 30 minutes with the pan drippings for added flavor and moisture.
Once cooked, remove the turkey from the oven and let it rest for about 20-30 minutes before carving. This allows the juices to redistribute throughout the meat.
Carve the turkey and transfer to a serving platter. Garnish with fresh herbs for an elegant presentation. Serve with your favorite sides.
Notes
Let the turkey rest before carving for juicier meat.