Put shortening, salt and sugar in large bowl. Pour boiling water over all and stir until shortening melts. Let cool to lukewarm. Sprinkle yeast over this; stir to dissolve; let stand until mixture begins to bubble. Add flour and beat. Roll out on floured board to about 1 cm thickness. Cut with round cutter, I use clean, empty tuna can. Sprinkle cookie sheets with cornmeal. Set muffins on these, fairly far apart. Let rise to double in bulk. Set griddle or electric frypan to 180ºC Sprinkle with cornmeal. Put muffins, rounded side down, on griddle and bake 7 minutes. Turn and bake 7 minutes on the other side. Split with fork, and toast or spread with butter and put under broiler until butter bubbles. These muffins freeze successfully. They should be split with fork before freezing. The recipe may be doubled when preparing muffins for the freezer. When I make these, I make 5 or 6 recipes!!!! They are even better than Wolfermans!!! I could eat these till I pop!!!! Yum!