Preheat oven to 400°F.
Brush cut sides of apples with 1 teaspoon lemon juice. Arrange apples, cut sides up, in baking dish. Combine brown sugar and cinnamon in small bowl; sprinkle cut sides of apples with sugar mixture. Pour maple syrup in bottom of dish. Cover with foil, and bake 10 minutes. Uncover, and bake an additional 15 minutes, or until apples are tender. Transfer apples to serving platter.
Pour syrup and pan juices into small saucepan, and stir in remaining teaspoon lemon juice and salt; bring to a boil. Cook 2 minutes, or until sauce is thickened, whisking constantly. Stir in Nutsz. Spoon sauce over apples, and serve warm.