Recipe: Baked Corn Pudding Casserole

Name: Recipe: Baked Corn Pudding Casserole
Ingredients: Unsalted butter, for greasing the baking dish; 3 tablespoons all-purpose flour; 3 tablespoons cornmeal; 2 teaspoons baking powder; 1 1/2 teaspoons kosher salt; 1/2 teaspoon garlic powder; 1/4 teaspoon cayenne pepper; 6 large eggs; 2 cups half-and-half; 8 tablespoons (1 stick) unsalted butter, melted and cooled; 1 cup shredded sharp cheddar cheese; 5 cups corn kernels, thawed if frozen (about 20 ounces); 2 medium scallions (green parts only), thinly sliced