Rustic Apple-Sweet Potato Tart

Prepare pastry dough: Stir together all-purpose flour, whole-wheat flour and salt in a medium bowl. Using a pastry blender, cut in butter until mixture resembles coarse crumbs. Stir in canola oil. Sprinkle 1 tablespoon cold water over part of the flour mixture; toss gently with a fork. Push moistened dough to side of bowl. Repeat with additional cold water, 1 tablespoon at a time until all of the flour mixture is moistened. Shape into a ball. Set aside.

Prepare tart: Preheat oven to 375 degrees F. Line a large baking sheet with foil; sprinkle foil lightly with flour. Place reserved dough on foil. Flatten slightly. Roll dough from center to edge into a 12-inch circle. Set aside.

Combine green-skin apple slices, red-skin apple slices and sweet potato slices in a large bowl. Add lemon juice; toss gently to coat. Combine sugar, 2 teaspoons flour, cinnamon and coriander in a small bowl. Add to apple mixture; toss gently to coat.

Mound apple mixture in center of pastry, leaving a 2-inch border around edge. Fold pastry up and over filling, pleating dough as necessary. Cover apple mixture only with a double thickness of foil (do not cover dough).

Bake for 40 minutes. Remove foil. Bake for 10 to 15 minutes more or until apples and sweet potato are tender. Combine honey and the water in a small bowl; brush over apple mixture. Serve warm.