How to Make It
Preheat the oven to 500°. Lightly oil a large glass or ceramic baking dish.
In a small saucepan, cook the bacon over moderate heat until crisp; drain on paper towels. In a small bowl, mix the bacon, mascarpone, parsley and thyme and season with salt and pepper.
Using a small melon baller or spoon, scoop a little of the core from each endive half, leaving a shallow bowl. Rub the endives lightly with the olive oil. Spread 2 teaspoons of the mascarpone mixture on the cut side of each endive half, smearing it between the leaves. Arrange the filled endives in the baking dish and sprinkle with the bread crumbs. Bake for about 8 minutes, or until the filling is bubbling and the endives are just tender.
Preheat the broiler. Broil the endives for about 1 minute, or until the bread crumbs are toasted. Serve hot.