3 c Flour
2 c Sugar
1/3 c Cocoa
1 ts Baking soda
1/2 ts Salt
2 c Water
3/4 c Vegetable oil
2 tb White vinegar
1 ts Vanilla
Frosting:
1/3 c Unsalted butter; softened
1/3 c Solid vegetable shortening
2/3 c Sugar
1 ts Vanilla
1/2 c Milk; heated to almost
Boiling
Heat oven to 350 degrees. Sift flour, sugar, cocoa,
baking soda and salt into a 9x13-inch baking pan. Add
water, oil, vinegar and vanilla. Mix with a large rubber
spatula until smooth, taking care to mix ingredients along
edges.
Bake until toothpick inserted in center comes out clean,
about 40 minutes. Cool completely on wire rack.
FROSTING: combine butter and shortening in a food
processor or mixing bowl. Add sugar and vanilla. Mix until
smooth, about 2 minutes.
Slowly drizzle in milk. Beat 2 minutes in food processor
or 7-10 minutes with a mixer, until smooth, satiny and
fluffy. Chill just 20 minutes before frosting. Helen Jolly
