Ingredients
- 1 ¼ cups sorghum flour
- ½ tablespoon corn or potato starch
- ½ cup unsweetened Dutch process cocoa
- 1 teaspoon baking soda
- ¼ teaspoon baking powder
- ¼ teaspoon salt
- 1 cup sugar
- ½ cup PLUS 2 tablespoons (1 ¼ sticks) room-temperature, unsalted butter
- 1 large egg


