Dry the turkey breast with a paper towel and let stand at room temperature for 1 hour.
Stir together the oil, syrup, salt, paprika, black pepper, and lemon zest.
Brush over the outside of the bird.
Place the onion and lemons in the cavity .
Add the broth to the bottom of the Instant Pot and place the trivet in the pot. Add the turkey on top. Place the lid on the top and lock it into position. Turn the valve to SEAL.
SET the pot to MANUAL HIGH PRESSURE for 30 minutes. (Adjust the time depending on the size of the turkey - aim for 6 minutes per pound.)
When the time is up, do a quick release of the pressure.
Preheat your oven to BROIL.
Move the turkey to a roasting pan. Broil for 3 to 5 minutes.
Alternatively, you can use your crisper lid to crisp up the skin.
Transfer the turkey to a cutting board and allow to rest for at least 15 minutes. Use an instant-read thermometer to ensure that the internal temperature is 165° F at the thickest part of the breast before serving.