1 cup "white-colored" wheat grains flour or wheat grains pastry flour 1 cup whey protein protein powder, vanilla or plain 1 teaspoons baking powder 1 teaspoon sodium bicarbonate 1/2 cup sugar 1/2 cup unsalted butter (1 stick), 70 degrees 2 eggs 1/4 cup low-fat, buttermilk zest of 1 lemon (a couple