2. Step
Whisk together flour, cinnamon, baking powder, baking soda, salt and nutmeg in a large bowl until combined. Whisk together buttermilk, granulated sugar, brown sugar and egg in a 4-cup measuring cup (or a small bowl) until combined; stir in butter, vanilla and cooled cider reduction. Pour buttermilk mixture into flour mixture; stir until combined (but do not overmix).