In a mixing bowl, combine boiling water, milk powder, sugar, ½ teaspoon of the salt and stir well. Let cool to about 115 to 120 degrees F. (I use a microwave-safe mixing bowl, so if the mixture gets too cool too fast, I can heat it for a few seconds in the microwave).
Add the yeast to the 115 to 120 degree milk mixture, then stir in the flour. Mix well with a wooden spoon (or heavy duty scraper) then stir in another ⅓ cup of warm water. Mix as best you can (it will probably be lumpy and you may see bits of dried milk), then cover and let stand in a warm place for 30 minutes. Measure out the second ½ teaspoon of salt and keep it near the bowl.
Towards the end of the 30 minutes, begin preheating a large lidded skillet or better yet, an electric skillet to 300 degrees F.
After 30 minutes, stir the remaining ½ teaspoon of salt into the risen English muffin mixture.
Place greased metal (or homemade foil)English muffin rings in the pan.
Using about a ⅓ cup measure, spoon dough into rings. Cover skillet and cook for 6-7 minutes. Remove the lid and turn rings using spatula or tongs. Cover with the lid and cook for another 5 to 6 minutes or until golden brown.
Place on a cooling rack, and when cool enough to touch remove the rings.