1 If you're a beginner, start with 3 to 4 days of the cardio exercise of your choice, working at a level you can handle.  Add time each week to work your way up to 30 to 45 minutes of continuous exercise.
Center turkey breast on rack. Transfer to oven, and roast until juices run clear and an instant-read thermometer reads 165 degrees when inserted into the thickest part of the breast, about 1 hour and 20 minutes.Transfer to a platter, and let rest for 10 minutes before carving.enter turkey breast on rack. Transfer to oven, and roast until juices run clear and an instant-read thermometer reads 165 degrees when inserted into the thickest part of the breast, about 1 hour and 20 minutes.
A boneless turkey breast will cook for a shorter time period. And if you cook a bone-in, skin-on turkey breast, it will take about 2 hours to roast, about as long as the bone-in legs because of the different sizes and weights.The thighs cook for the shortest time period, so add them 30 minutes after the breast and legs have started.1  How to Roast a Turkey Breast, Step by Step.nd if you cook a bone-in, skin-on turkey breast, it will take about 2 hours to roast, about as long as the bone-in legs because of the different sizes and weights. The thighs cook for the shortest time period, so add them 30 minutes after the breast and legs have started. 1  How to Roast a Turkey Breast, Step by Step.