Preheat the oven to 425°. Line a large rimmed baking sheet with parchment paper. In a large bowl, whisk together the flour, sugar, baking powder, salt, baking soda, ginger and cloves. Using a pastry blender or 2 knives, cut in the cold butter until the mixture resembles small peas. Stir in the buttermilk, then turn the dough out onto a lightly floured surface and knead just until it holds together; don't overwork it. Divide the dough into 4 pieces and roll each piece into a 7-inch round.