1. Preheat oven to 400 degrees. In a medium bowl, combine oats, 1/3 cup brown sugar, flour, almonds, cinnamon, and salt. With your hands or a pastry cutter, work in butter until large clumps form.

2. In a large bowl, gently toss together pears, 2 tablespoons brown sugar, ginger (if using), cranberries, and cornstarch. Transfer to an 8-inch square baking dish and sprinkle with oat mixture.

3. Bake until juices are bubbling and topping is browned and crisp, 20 minutes. Let cool 10 minutes. Serve warm or at room temperature.