Sift flour, sugar and baking powder into medium bowl. Make a well in the center and add egg and milk. Beat until well combined. Brush a flat nonstick pan and five egg rings with butter. Place egg rings in pan. Heat on low for 1 minute. Place 2 tablespoons of mixture into each egg ring. Cook for 8 minutes over low heat. Crumpets are cook when the surface has set and bubbles stop rising to the surface. Repeat until done.