In food processor, place flour, cornmeal, sugar, baking powder, baking soda, salt and red pepper. Add 3/4 cup butter. Cover; process with on-and-off pulses 3 or 4 times or until mixture looks like coarse meal. Place mixture in large bowl; stir in cheese. In small bowl, beat egg and buttermilk with whisk until blended. Add egg mixture to dry ingredients, stirring just until moistened.