BLUEBERRY-ONION SAUCED PORK TENDERLOIN

3/4 to 1 pound pork tenderloin

2 tablespoons butter, divided

2 medium onions, sliced

1/2 teaspoon salt

1/4 teaspoon ground black pepper

2 tablespoons sugar

1/4 cup port wine or sweet sherry

2 tablespoons balsamic vinegar

1 cup fresh or frozen blueberries

1 cup chopped cherry tomatoesPreheat broiler.

Broil pork, turning occasionally until cooked through, about

20 minutes. Remove to a platter; cover to keep warm.

Meanwhile, in a large skillet over medium-high heat, melt

2 tablespoons of the butter. Add onions, salt and pepper;

cook until onions are golden, about 10 minutes.

Add sugar; cook until onions are caramelized, 3 minutes longer.

Add port, balsamic, blueberries and tomatoes and bring to a boil.

Remove from heat. Thinly slice pork and serve with sauce.