Preparation / Directions:
For base: Cut shortening into dry ingredients; mix well. Pat firmly and evenly into an 8-inch square pan. Bake at 350F for 10-12 min. Cool.
For cake: Cream shortening and sugar; add eggsand vanilla, beating well until fluffy. Sift flour, baking powder and salt together; add to creamed mixture alternately with milk. Pour batter into a greased and floured 8-inch square pan. Bake at 350F for 35-40 min.
For frosting: In small saucepan, stir together the milk and the flour. Cook, stirring constantly until mixture is thickened and smooth; cool. On highest speed of mixer, beat cooled flour mixture with butter, shortening and vanilla until smooth and fluffy. Blend in
icing sugar and salt; continue beating until frosting is fluffy- at least 15 min. Assemble.
To Assemble Cake: Place shortbread base on serving plate; spread with small amount of frosting. Place cake on base. Cover top and sides of cake with remaining frosting. If desired, garnish with chocolate sprinkles or decorate as you wish.