Braised Balsamic Endive and Radicchio

Preheat oven to 450°.

Heat a large skillet over high heat. Add oil to pan; swirl to coat. Add endive and radicchio, cut side down; cook 90 seconds. Place endive in a 13 x 9-inch glass or ceramic baking dish. Turn radicchio; cook for 3 minutes. Add radicchio to dish with endive. Add stock and balsamic vinegar to skillet; bring to a boil. Pour vinegar mixture over endive mixture. Bake at 450° for 20 minutes or until tender. Remove core from vegetables; discard. Cut into slices; stir in parsley, black pepper, and salt.