Preheat the oven to 325 F and prepare a roasting pan with a rack. Line the pan with foil or parchment for easy cleanup if desired.
Remove the wrapper (and gravy packet, if any) from the thawed boneless turkey breast. You can leave the butcher's string on, but loosen it a little so it doesn't cut into the turkey. Place the turkey breast upside down on the roasting rack in the pan.
Combine the malt vinegar, lemon juice, and brown sugar in a bowl. Whisk. Slowly drizzle in the olive oil, whisking continuously, until an emulsion is formed. Split the marinade into two separate bowls (to prevent cross-contamination).
Use one bowl of marinade to thoroughly coat the turkey breast, starting with the underside of the breast. Then, turn the breast right side up and coat the top and sides. Place the pan in the oven.
Roast for about 2 hours, or until a thermometer reads 165 F when inserted in the thickest part. During the cooking process, occasionally baste with the second bowl of marinade.
Let rest 10 minutes before slicing.
Foolproof Boneless Turkey Breast Recipe
Amount Per Serving
Calories 118Calories from Fat 81
% Daily Value*
Saturated Fat 1g6%
Vitamin C 4mg5%
* Percent Daily Values are based on a 2000 calorie diet.
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