"Rice flour gives these simple crackers a slightly grainy texture, and the soy sauce lends a lovely brown tint. This is just the cracker to serve as a light afternoon snack with pot of green tea. 325~F. 15 to 20 minutes Preheat the oven to 325~F. Combine the flours in a large bowl or in the food processor. Add the oil and blend until the mixture resembles coarse meal. Blend in the soy sauce and egg white. Blend in enough of the buttermilk, little by little, to form a dough that will hold together in a cohesive ball. Divide the dough into 2 equal portions for rolling. On a floured surface or pastry cloth, roll out to 1/16 inch thick. With a sharp knife or a cookie cutter, cut into 2-inch circles or squares. Place the crackers on a lightly greased or parchment-lined baking sheet. Prick each one with a fork in 2 or 3 places. Bake for 15 to 20 minutes, or until crisp, turning over once during baking. Cool on a rack. Yield: 70-80.