the dry ingredients. beat with an electric mixer for 2 minutes at medium speed, scraping the bowl occasionally. add about ¼ cup more flour, or enough to make a thick batter. add the egg. beat on high speed for 2 minutes, scraping. stir in enough additional flour so that the dough holds together and can be turned out., but is still sticky. work in just enough flour to handle easily then knead for 5 minutes until dough is smooth and elastic.
grease and flour two 8'' square pans. divide the dough equally into the pans and shape so it fits the pan, pressing it up the sides. it will rise slightly 