In a large bowl, combine the flours, baking powder, salt, 1/4 teaspoon garlic powder and baking soda. Cut in 3 tablespoons butter until mixture resembles coarse crumbs; add cheese. Stir in buttermilk just until moistened.
Drop by two tablespoonfuls 2 in. apart onto baking sheets coated with cooking spray. Bake at 425° for 10-12 minutes or until golden brown. Melt remaining butter; stir in parsley and remaining garlic powder. Brush over biscuits. Serve warm. Yield: 15 biscuits.
1 cup all-purpose flour
1 cup cake flour
1-1/2 teaspoons baking powder
3/4 teaspoon salt
1/2 teaspoon garlic powder, divided
1/4 teaspoon baking soda
4 tablespoons cold butter, divided
1/3 cup finely shredded cheddar cheese
1 cup buttermilk
1/2 teaspoon dried parsley flakes