Preheat oven to 375F. Mix the dry ingredients in a bowl and add the blueberries. In a measuring cup or bowl mix the egg and 3/8 cup milk and add to the dry ingredients. Mix until dough is formed and roll out a circle about one inch thick. Using a pizza cutter, cut into triangles. Transfer to an oiled baking sheet and bake for 10 to 12 minutes, or until just done.