In a small bowl, dissolve yeast and sugar in warm water. Let stand until creamy, about 10 minutes. While yeast is activaing mix togther in a large bowl the flour and salt.
Once the yeast is ready stir in the warm milk, oil, and yeast mixture into your flour. Beat well until smooth. Cover with plastic wrap and let rise in a warm place until doubled, about 60 minutes. Lightly grease or butter the inside of the crumpet rings and dip the rings in cornmeal.
Heat a griddle or frying pan over medium-low heat. Sprinkle cornmeal on the griddle and place the Crumpet Rings on the griddle. Deflate the batter by stirring. Pour 1/4 cup of batter into each ring. Cook slowly for about 8-10 minutes or until pale brown. Carefully remove the rings and turn the biscuits over. Bake on second side about 5-8 minutes or until light brown. Transfer to a rack to cool.
If you don't have crumpet rings, you can make crumpet rings out of aluminum foil. Cut aluminum foil into a piece that is about 5" wide, and the length of your roll. Fold in half lengthwise and then in half again; can fold it one more time for something studier and shorter. Form into a circle that is about 3 1/2 inches in diameter and slide the ends through each other to close the circle. If desired you could add a small piece of tape.
Keyword Breakfast Food, English Muffin, Toaster Biscuits