Combine boiling water, cereal, shortening, sugar and set aside. Make a yeast sponge of warm water, eggs, salt and yeast. Add to cereal mix. Stir in flour to make a soft dough. Let rise and refrigerate 24 hours. Knead lightly. Form rolls, place on baking sheet or into pan. Let rise till double. Bake at 375 degrees, 10 - 12 minutes.