2 eggs (separated)
Beat egg whites till soft peaks from; set aside.
Cream shortening and sugar.
Beat in egg yokes, mix well.
Combine flour, baking soda; add to creamed mixture alternately with milk, beating well after each addition. Add vanilla. Fold in egg whites. Fold in nuts if desired.
Pour into 13×9″ greased pan.
Bake at 350?F for 45-50 minutes.
Cool on wire rack.
Garnish with whipped cream.
To sour milk: place 1 tsp. white vingar in a measuring cup. Add enough milk to equal 1/4 cup.