To roast a boneless, skinless turkey breast, season the breast to taste with salt and pepper, transfer it to a shallow roasting pan, and bake it for 18 to 20 minutes in an oven preheated to 350 degrees Fahrenheit. The breast's internal temperature should reach at least 170 degrees Fahrenheit.
Prior to the baking, marinating a turkey breast imparts depth of flavor to it. A basic marinade consists of 2 or more of the following ingredients: a fat, an acid, aromatics, spices and salt. In a small mixing bowl, combine 3 tablespoons of Dijon mustard, 2 tablespoons of balsamic vinegar, 3 teaspoons of dried herbs, 2 teaspoons of garlic powder and 1 teaspoon of salt. Add 1 teaspoon of paprika and freshly ground black pepper to complete the marinade.
Rub the mustard marinade all over the breast, and let the breast soak up the marinade for at least one hour before roasting or overnight. Before roasting the turkey breast, transfer it to a baking pan or a baking sheet. Preheat the oven to 350 degrees Fahrenheit. Roast the breast for 45 to 60 minutes, or until its internal temperature reaches at least 170 degrees Fahrenheit.
For another simple marinade, mix 1 3/4 cups of chicken stock, 1 teaspoon of dried crushed thyme, 1 teaspoons of dried crushed rosemary leaves and 1/8 teaspoon of black pepper. Marinate the turkey breast for at least two hours.