Blueberry Cobbler
Serves 8- 1 tablespoon cornstarch
- 1 1/2 teaspoons grated lemon zest plus 1 tablespoon juice, divided
- Pinch salt
- 3/4 cup sugar
- 6 cups blueberries
- 1 1/2 cups all-purpose flour
- 1 1/2 teaspoons baking powder
- 1/2 teaspoon baking soda
- 1/2 teaspoon salt
- 1 tablespoon sugar
- 3/4 cup buttermilk
- 6 tablespoons unsalted butter, melted
Adjust oven rack to the middle position and heat oven to 375 degrees F. Line a rimmed baking sheet with parchment paper.
In a large bowl, stir together cornstarch, lemon zest, pinch of salt, and sugar. Add blueberries and lemon juice and gently toss to coat. Transfer mixture to an 8-inch square baking dish. Place baking dish on parchment-lined baking sheet. Place baking sheet in oven. Bake until the filling is hot and starting to bubble around the edges, about 25 minutes.
While the filling bakes, in a second large bowl, whisk together flour, baking powder, baking soda, salt, and sugar. In a liquid measuring cup, use a fork to stir buttermilk and melted butter until butter forms small clumps.
When the filling is ready, remove the baking sheet from the oven and place it on a cooling rack. Increase oven temperature to 475 degrees F and let the filling cool for 10 minutes.
Add buttermilk mixture to bowl with flour mixture. Stir until just combined.
Spray inside of a 1/4-cup dry measuring cup with vegetable oil spray. Use greased measuring cup to scoop batter: Drop scoops of dough evenly onto warm berry filling to make 9 biscuits. Return baking dish (still on baking sheet) to the oven. Bake until biscuits are golden brown, and a toothpick inserted in the center of a biscuit comes out clean, 12 to 14 minutes.
Place baking sheet on a cooling rack. Let the cobbler cool for at least 30 minutes before serving.