Pan: 18 By 26-Inch Sheet Pan Temperature: 350 F. Oven

1. Sift Together Flour , Sugar, Salt, Baking Powder, And Milk Into Mixer Bowl.

2. Add Shortening And Water To Dry Ingredients. Beat At Low Speed 1 Minute Or Until Blended; Continue Beating At Medium Speed 2 Minutes. Scrape Down Bowl.

3. Combine Egg Whites, Water, And Vanilla. Add Slowly To Mixture While Beating At Low Speed. Scrape Down Bowl. Beat At Medium Speed 3 Minutes.

4. Pour 1 Gal (About 7 Lb 6 Oz) Batter Into Each Greased And Floured Pan

5. Bake 35 To 45 Minutes Or Until Done.

6. Cool; Frost If Desired. Cut 6 By 9.

2. In Step 5, If Convection Oven Is Used, Bake At 300 F., 25-35 Minutes Or Until Done On Low Fan, Open Vent.