Fresh Cranberry And Meyer Lemon Biscuits

Name: Fresh Cranberry And Meyer Lemon Biscuits
Ingredients: 3 cups all-purpose flour; 2 1/2 teaspoons baking powder; 1/2 teaspoon baking soda; pinch of ground ginger; 3/4 teaspoon salt; 1/4 cup granulated sugar; 3/4 cup cold unsalted butter, but into small cubes; 1 large egg, lightly beaten; 1 cup fresh cranberries, coarsely chopped (you can used thawed and drained berries from the freezer although the scones will have a more pink color); 1 teaspoon Meyer lemon zest; 1 beaten egg for brushing the tops of the scones before baking; turbinado or granulated sugar for sprinkling on top before baking