Turkey Breast In Blueberry Balsamic Sauce

Preheat oven to 230ºC (450ºF).

Slice onion thinly. Pour olive oil into a large cast iron pan or another oven-proof dish. Add rosemary and sliced onion.

Rub the turkey breast with salt and pepper all over and place skin-side up in the pan. Reduce oven temperature to 200ºC (400ºF) and roast for 40 minutes.

In the meantime, make the blueberry balsamic glaze. Place about 50 grams (about 1/2 cup) frozen blueberries in a small saucepan together with the chopped dates or figs and balsamic vinegar. Bring to simmer and cook on low heat, uncovered until reduced by half. Add mustard, maple syrup, and some salt and pepper.

After the initial 40 minutes, brush the turkey breast with the glaze and pour the rest on top of it. Shake the pan and add the rest of the blueberries around the turkey. Turn the temperature down to 180ºC (350ºF) and roast for about another 20 minutes or until the turkey breast is cooked through.