Preheat the oven to 375°F.
Combine the chopped pears, maple syrup, water, cinnamon, ginger, cardamom, and vanilla extract in a large oven-safe skillet over medium-high heat. Bring the liquid to a simmer and let it bubble for 5-7 minutes, until the pears begin to soften and the liquid is reduced a bit.
4 medium pears, 1/3 cup maple syrup, 1 Tablespoon water, 1 teaspoon ground cinnamon, 1/2 teaspoon ground ginger, 1/2 teaspoon cardamom, 1 and 1/2 teaspoon vanilla extract
While the pears simmer, use a large prep bowl to combine the flour, oats, brown sugar, cinnamon, ginger, and kosher salt for the topping. Whisk together, then grate in the cold butter. (You can also cut the butter into small pieces and add it that way.)
1/3 cup all purpose flour, 1/3 cup old-fashioned oats, 1/4 cup brown sugar, 1/4 teaspoon ground cinnamon, 1/4 teaspoon ground ginger, 1/4 teaspoon kosher salt, 5 Tablespoons butter
Stir with a fork into a crumbly topping; if needed, press the mixture together lightly with your fingers to make little crumbles.
After removing pears from the heat, stir in tapioca and blueberries. Sprinkle the topping in an even layer on top; don’t worry if the fruit peeks through in spots.
2 Tablespoons tapioca pearls, 2 cups fresh blueberries
Transfer the skillet to the oven and bake for 40-45 minutes, until the fruit is bubbling and the topping is golden brown. Serve warm with ice cream or whipped topping. Enjoy!