Calumet One Egg Cake

Directions

1. 1
   Sift flour once; measure and add baking powder and salt.
2. 2
   Sift together three times; cream butter thoroughly.
3. 3
   Add sugar gradually and cream together until light and fluffy.
4. 4
   Add egg and beat very thoroughly.
5. 5
   Add flour, alternately with milk, a small amount at a time.
6. 6
   Beat after each addition until smooth.
7. 7
   Add vanilla.
8. 8
   Bake in a greased pan, 8 x 8 x 2-inch, in moderate oven (350°) for 50 minutes.