2. For the cookies: Sift together 3 cups of the flour, the baking powder, cinnamon, and cloves in a small bowl and set aside. In a large bowl, beat the olive oil with the sugar until creamy. Stir the baking soda into the citrus juice and add to the oil-and-sugar mixture. Add the brandy, walnuts, and grated zest and continue mixing vigorously until combined.