Add flour and salt to eggs add milk beating constantly with beater.  Spread bottom and sides of a cold 10-inch skillet with butter.  Pour in all batter and put in preheated oven 425 for a few minutes. 

Reduce heat to a slow 325.  When pancake is puffed up crisp and brown at edges (about 10 min) remove to hot platter.  Serve with powdered sugar and lemon juice or with preserves.  

 Serves:  4