1 cup all-purpose flour
2/3 cup finely ground cornmeal
1/4 cup plus 1 tablespoon granulated sugar
1 1/2 teaspoons baking powder
Scant 1/2 teaspoon cinnamon
1/2 teaspoon kosher salt
6 tablespoons unsalted butter, cut into small pieces and chilled
2/3 cup plus 1 tablespoon heavy cream
6 cups blueberries (2 pounds)
2 tablespoons honey
3 tablespoons fresh orange juice
1/2 teaspoon finely grated lemon zest
1 tablespoon potato starch or cornstarch
1 tablespoon turbinado sugar (see Note)
Vanilla ice cream, for serving