This is one of a number of historical recipes I am posting from my cookbook collection. This recipe is adapted from the Rumford Complete Cookbook. At the time this recipe was first published, ovens did not have heat regulators, so recipes specified only "hot," "moderate" or "slow/cool" temperatures. This recipe is also unusual in that it calls for a small egg. Rumford Baking Powder is still being made, by the same company that makes Clabber Girl.