Add all ingredients, except apple, in blender and blend until mostly smooth. Put mixture in bowl and mix in apple.

Heat large skillet or griddle. Lightly oil skillet. Pour ¼ cup batter onto hot skillet, making 1 pancake (I find the first one is always a mess). Remove and eat or throw away.

Pour rest of batter onto skillet. When bubbles form, pancake is ready to be flipped over. Cook until browned on the other side.