Pork Tenderloin With Apples and Onions without sauce

1/4 cup balsamic vinegar 2 tablespoons maple syrup 3 medium red apples , halved and cored, each cut into 8 wedges 1 large red onion , halved and sliced into[...]

2 pork tenderloin, trimmed of excess fat and silver skin (1 1/2 to 2 pounds total) 2 tablespoons olive oil coarse salt and pepper 2 leeks , white and[...]

1/2 teaspoon salt 1/4 teaspoon ground cinnamon 1/4 teaspoon ground cardamom 1/8 teaspoon black pepper 1 large sweet potato , in 1-inch slices (peeled or not)[...]