Grease the griddle if not well seasoned or non-stick. Heat the griddle while mixing the batter (water sprinkled on it should bounce when it's ready to use). Mix together the flour, baking powder and salt. Beat egg, milk, sugar, and oil together. Add the liquid mixture to the flour mixture, sitrring only to moisten the dry ingredients (batter should be slightly lumpy). For each pancake, pour about 1/4 cup batter onto the hot griddle. Cook until the pancake is covered with bubbles and its edges are slightly dry. Turn and brown the other side.