For the compote: Dissolve the cornstarch in the 2 teaspoons orange juice. Set aside. Combine the 1 1/2 cups orange juice, the honey and vanilla bean in a medium saucepan and bring to a boil over high heat, let cook for 2 minutes or until the honey has completely dissolved. Add the blueberries and blackberries and cook for 2 minutes. Add the cornstarch and cook until the mixture thickens slightly, about 2 minutes. Remove from the heat and fold in the raspberries. Discard the vanilla bean. Serve warm.
Yield: 6 to 8 servings