Cornmeal-Biscuit Topping | America's Test Kitchen

Ingredients

• 1 cup (5 ounces/142 grams) all-purpose flour , plus more for dusting the work surface
• 1 cup fine-ground cornmeal
• 2 teaspoons baking powder
• 1/4 teaspoon baking soda
• 1 teaspoon sugar
• 1/2 teaspoon salt
• 8 tablespoons unsalted butter , chilled and cut into 1/4-inch cubes
• 3/4 cup cold buttermilk , plus 1 to 2 tablespoons if needed