Cast-Iron Huckleberry Cobbler

Heat oven to 350 degrees. Melt butter in a 10-inch cast-iron skillet in oven, about 5 minutes.

Meanwhile, toss huckleberries with 2 tablespoons sugar in a medium bowl. Whisk together flour, cornmeal, baking powder, salt, and remaining 1 cup sugar in a large bowl. Add milk and vanilla. Remove skillet from oven and add melted butter to flour mixture; whisk until just combined. Pour batter into skillet; top with huckleberries and juices.

Bake until golden brown and fruit is bubbling, 40 to 45 minutes. Let stand 10 minutes before serving.